#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;
typedef long long ll;

vector<ll> divisor(ll n) {
    vector<ll> ret;
    for (ll i = 1; i * i <= n; i++) {
        if (n % i == 0) {
            ret.push_back(i);
            if (i * i != n) ret.push_back(n / i);
        }
    }
    sort(begin(ret), end(ret));
    return (ret);
}

int main() {
    ll n, k;
    cin >> n >> k;

    vector<ll> div = divisor(k);
    ll ret = 0;
    for (auto x:div) {
        ll y = k / x;
        if (x <= n * 2 && y <= n * 2) {
            ll a = min(x - 1, n * 2 - x + 1);
            ll b = min(y - 1, n * 2 - y + 1);
            ret += a * b;
        }
    }

    cout << ret << endl;
    return 0;
}