from math import isqrt

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

enum = lambda x: max(min(x - 1, 2 * N - x + 1), 0)

ans = 0
iq = isqrt(K)
for ac in range(1, iq + 1):
    if K % ac:
        continue
    bd = K // ac
    ans += enum(ac) * enum(bd) * 2
if iq ** 2 == K:
    ans -= enum(iq) ** 2
print(ans)