diff --git a/libs/dis.py b/libs/dis.py
new file mode 100644
index 0000000..a93656b
--- /dev/null
+++ b/libs/dis.py
@@ -0,0 +1,41 @@
+from typing import Tuple
+
+
+def euclid_dis(x1: int, y1: int, x2: int, y2: int) -> int:
+    """
+    ユークリッド距離を計算します
+
+    注意:
+    この関数はsqrtを取りません(主に少数誤差用)
+    sqrtを取りたい場合は、自分で計算してください
+    """
+
+    return ((x1 - x2) ** 2) + ((y1 - y2) ** 2)
+
+
+def manhattan_dis(x1: int, y1: int, x2: int, y2: int) -> int:
+    """
+    マンハッタン距離を計算します
+    """
+
+    return abs(x1 - x2) + abs(y1 - y2)
+
+
+def manhattan_45turn(x: int, y: int) -> Tuple[int]:
+    """
+    座標を45度回転します
+    回転すると、マンハッタン距離が、チェビシェフ距離になるので、距離の最大値などが簡単に求められます
+    """
+
+    res_x = x - y
+    res_y = x + y
+
+    return res_x, res_y
+
+
+def chebyshev_dis(x1: int, y1: int, x2: int, y2: int) -> int:
+    """
+    チェビシェフ距離を計算します
+    """
+
+    return max(abs(x1 - x2), abs(y1 - y2))
diff --git a/libs/math_func.py b/libs/math_func.py
index c1670a6..c59611e 100644
--- a/libs/math_func.py
+++ b/libs/math_func.py
@@ -69,8 +69,6 @@ def calc_divisors(N):
     計算量は、√Nです
     約数は昇順に並んでいます
     """
-    import heapq
-
     result = []
 
     for i in range(1, N + 1):
@@ -80,11 +78,11 @@ def calc_divisors(N):
         if N % i != 0:
             continue
 
-        heapq.heappush(result, i)
+        result.append(i)
         if N // i != i:
-            heapq.heappush(result, N // i)
+            result.append(N // i)
 
-    return result
+    return sorted(result)
 
 
 def factorization(n):
diff --git a/merge_file.bash b/merge_file.bash
index 6a58902..5e7d991 100755
--- a/merge_file.bash
+++ b/merge_file.bash
@@ -7,19 +7,20 @@ echo "新しいmain.py作成完了"
 # テンプレ
 # /bin/cat python/<filename>.py >> code/main.py
 
-cat libs/import.py >> code/main.py
-cat libs/math_func.py >> code/main.py
-cat libs/array_create.py >> code/main.py
-cat libs/binary_search.py >> code/main.py
-cat libs/modint.py >> code/main.py
-cat libs/standard_input.py >> code/main.py
-cat libs/yn_func.py >> code/main.py
-cat libs/grid.py >> code/main.py
-cat libs/memo.py >> code/main.py
-cat libs/grath.py >> code/main.py
-cat libs/unionfind.py >> code/main.py
-cat libs/trie.py >> code/main.py
-cat libs/utils.py >> code/main.py
+cat libs/import.py >>code/main.py
+cat libs/math_func.py >>code/main.py
+cat libs/array_create.py >>code/main.py
+cat libs/binary_search.py >>code/main.py
+cat libs/modint.py >>code/main.py
+cat libs/standard_input.py >>code/main.py
+cat libs/yn_func.py >>code/main.py
+cat libs/grid.py >>code/main.py
+cat libs/memo.py >>code/main.py
+cat libs/grath.py >>code/main.py
+cat libs/unionfind.py >>code/main.py
+cat libs/trie.py >>code/main.py
+cat libs/dis.py >>code/main.py
+cat libs/utils.py >>code/main.py
 
 echo "作業完了"