n = int(input())
k = int(input())
ans = 0

def f(x):
    if x <= 1:
        return 0
    elif x <= n + 1:
        return x - 1
    elif x <= 2 * n:
        return 2 * n + 1 - x
    else:
        return 0
    

for i in range(1, int(k ** 0.5 + 1)):
    if k % i == 0:
        tmp = f(i) * f(k // i)
        if i == k // i:
            ans += tmp
        else:
            ans += 2 * tmp
print(ans)