n,k = map(int, input().split())
ans = 0
def divisors(num):
    divisors = []
    for i in range(k+1, num//2+1):
        if(num-k) % i == 0:
            divisors.append(i)
    divisors.append(num)
    return divisors
ans = divisors(n)
print(len(ans))