N = int(input())
K = int(input())

def make_divisors(n):
    divisors = []
    i = 1
    while i * i <= n:
        if n % i == 0:
            divisors.append(i)
            j = n // i
            if i != j:
                divisors.append(j)
        i += 1
    return divisors

ans = 0
for d in make_divisors(K):
    t = K // d

    a = max(0, d-1 - max(0, d-1 - N)*2)
    b = max(0, t-1 - max(0, t-1 - N)*2)

    ans += a * b

print(ans)