from math import sqrt
def inpl(): return list(map(int, input().split()))

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

ans = 0

def calc(z):
    if z <= N+1:
        return z-1
    elif z > 2*N:
        return 0
    else:
        return 2*N - z + 1
for x in range(1, int(sqrt(K))+1):
    if K%x:
        continue
    y = K//x
    ans += (1+(x!=y))*calc(x)*calc(y)
print(ans)