use std::io::{BufRead, Write};

fn main () {
    let stdin = std::io::stdin();
    let stdout = std::io::stdout();
    let mut reader = std::io::BufReader::new(stdin.lock());
    let mut writer = std::io::BufWriter::new(stdout.lock());

    let s: usize = {
        let mut buf = String::new();
        reader.read_line(&mut buf).unwrap();
        buf.trim_end().parse().unwrap()
    };

    for _ in 0..s {
        let (x, y): (i64, i64) = {
            let mut buf = String::new();
            reader.read_line(&mut buf).unwrap();
            let mut iter = buf.split_whitespace();
            (
                iter.next().unwrap().parse().unwrap(),
                iter.next().unwrap().parse().unwrap(),
            )
        };

        let z = x + y;
        let mut ans = 0;
        let mut i = 2;
        while i * i <= z {
            if z % i == 0 {
                {
                    let a = i - 1;
                    let q = z / i;
                    if a > 1 && (x - q) % (a - 1) == 0 && (y - q) % (a - 1) == 0 {
                        let b = (x - q) % (a - 1);
                        let c = (y - q) % (a - 1);
                        if b + c == q {
                            ans += 1;
                        }
                    }
                }
                if i * i != z {
                    let a = z / i - 1;
                    let q = i;
                    if a > 1 && (x - q) % (a - 1) == 0 && (y - q) % (a - 1) == 0 {
                        let b = (x - q) % (a - 1);
                        let c = (y - q) % (a - 1);
                        if b + c == q {
                            ans += 1;
                        }
                    }
                }
            }
            i += 1;
        }
        writeln!(writer, "{}", ans).unwrap();
    }
}