def make_divisors(n):
    divisors = []
    for i in range(1, int(n ** 0.5) + 1):
        if n % i == 0:
            divisors.append(i)
            if i != n // i:
                divisors.append(n // i)
    return divisors

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

def cnt(R):
    return min(R-1, max(0, R-1 - (R-1-N)*2))

D = make_divisors(K)
ans = 0
for d in D:
    r = K // d
    ans += cnt(d) * cnt(r)
print(ans)