import functools

counted = 0


@functools.lru_cache(maxsize=None)
def multiply(a: int, b: int):
    return a * b


n, k = map(int, input().split())
n += 1
half_n = n // 2

for a in range(half_n):
    for b in range(n):
        product = multiply(a, b)

        if product >= k:
            if product == k:
                counted += 1
            break


for b in range(half_n, n):
    for a in range(n):
        product = multiply(a, b)

        if product >= k:
            if product == k:
                counted += 1
            break

print(counted)