def make_divisors(N):#約数列挙O(√N)
    lower_divisors , upper_divisors = [], []
    i = 1
    while i*i <= N:
        if N % i == 0:
            lower_divisors.append(i)
            if i != N // i:
                upper_divisors.append(N//i)
        i += 1
    return lower_divisors + upper_divisors[::-1]
N = int(input())
K = int(input())

if 4 > K:
    print(0)
    exit()

div = make_divisors(K)
ans = 0
for d in div:
    if d == 1 or d == K:
        continue
    d1 = d
    d2 = K//d
    if d1 % 2 == 0:
        cnt1 = max(0,min((N-d1//2)*2+1,d1-1))
    else:
        cnt1 = max(0,min((N-d1//2)*2,d1-1))
    if d2 % 2 == 0:
        cnt2 = max(0,min((N-d2//2)*2+1,d2-1))
    else:
        cnt2 = max(0,min((N-d2//2)*2,d2-1))
    ans += cnt1*cnt2
print(ans)