import math
N = int(input())
K = int(input())

def keisan(N,k):
    if k <= N+1:
        return k-1
    elif N+2 <= k <= 2*N:
        return N-(k-N)+1
    else:
        return 0

ans = 0
for k in range(2,math.floor(math.sqrt(K))+1):
    if K % k == 0:
        if 1 <= k <= 2*N and 1 <= K//k <= 2*N:
            ans += 2*keisan(N,k)*keisan(N,K//k)
print(ans)