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

D = []
i = 1
while i * i <= K:
    if K % i == 0:
        j = K // i
        D.append(i)
        if i != j:
            D.append(j)
    i += 1


ans = 0
for x in D:
    y = K // x

    t = max(0, x-1 - N)
    a = max(0, x-1 - 2*t)

    t = max(0, y-1 - N)
    b = max(0, y-1 - 2*t)

    ans += a * b



print(ans)