2520.md

Code

class Solution:
    def countDigits(self, num: int) -> int:
        
        l1=[]                     #list of single digit factors
        k=min(num+1, 10)
        for i in range(1,k):      #range(num), range(num+1), range(1, num+1)
            if num%i==0:
                l1.append(i)
        
        n=str(num)

        l2=[]                     #list of numbers in num
        for i in range(len(n)):
            m=int(n[i])
            l2.append(m)

        c=0
        for i in l2:
            if i in l1:
                c=c+1

        return c