fn main() {
    let mut n = String::new();
    std::io::stdin().read_line(&mut n).ok();
    let n: usize = n.trim().parse().unwrap();
    let mut k = String::new();
    std::io::stdin().read_line(&mut k).ok();
    let k: usize = k.trim().parse().unwrap();

    let mut result = 0usize;
    for i in 2..=(k as f64).sqrt() as usize {
        if k % i > 0 { continue; }
        let ac = i;
        let bd = k / i;
        let ac = if ac <= n+1 { ac - 1 } else if ac > 2*n { 0 } else { 2*n + 1 - ac };
        let bd = if bd <= n+1 { bd - 1 } else if bd > 2*n { 0 } else { 2*n + 1 - bd };
        if i == k / i {
            result += ac * bd;
        } else {
            result += 2 * ac * bd;
        }
    }
    println!("{}", result);
}