n = int(input())
k = int(input())
r = int(k**(1/2))
c = 0
for i in range(2, min(2*n, r)+1):
    if k % i == 0:
        c += (i-1)*(k//i-1)*((k//i <= 2*n)+1)
if k**(1/2) == r <= 2*n:
    c -= (r-1)**2
print(c)