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

if K < 4:
    print(0)
    exit()
res = 0
for i in range(2,K+1):
    if i*i>K:
        break
    if K%i == 0 and i<=2*N and K//i<=2*N:
        s = 1
        if i != K//i:
            s *= 2
        if i > N:
            s *= abs((i-N)-N)+1
        else:
            s *= i-1
        if K//i>N:
            s *= abs((K//i-N)-N)+1
        else:
            s *= K//i-1
        res += s
print(res)