Baekjoon-2501-약수구하기
19 Sep 2022N,K = map(int, input().split(' '))
k = 0
for n in range(1,N+1):
if N % n == 0:
k += 1
if k == K:
print(n)
break
if k < K:
print(0)
N,K = map(int, input().split(' '))
k = 0
for n in range(1,N+1):
if N % n == 0:
k += 1
if k == K:
print(n)
break
if k < K:
print(0)