// ---------- begin input macro ----------
// reference: https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8
macro_rules! input {
    (source = $s:expr, $($r:tt)*) => {
        let mut iter = $s.split_whitespace();
        input_inner!{iter, $($r)*}
    };
    ($($r:tt)*) => {
        let s = {
            use std::io::Read;
            let mut s = String::new();
            std::io::stdin().read_to_string(&mut s).unwrap();
            s
        };
        let mut iter = s.split_whitespace();
        input_inner!{iter, $($r)*}
    };
}

macro_rules! input_inner {
    ($iter:expr) => {};
    ($iter:expr, ) => {};
    ($iter:expr, $var:ident : $t:tt $($r:tt)*) => {
        let $var = read_value!($iter, $t);
        input_inner!{$iter $($r)*}
    };
}

macro_rules! read_value {
    ($iter:expr, ( $($t:tt),* )) => {
        ( $(read_value!($iter, $t)),* )
    };
    ($iter:expr, [ $t:tt ; $len:expr ]) => {
        (0..$len).map(|_| read_value!($iter, $t)).collect::<Vec<_>>()
    };
    ($iter:expr, chars) => {
        read_value!($iter, String).chars().collect::<Vec<char>>()
    };
    ($iter:expr, bytes) => {
        read_value!($iter, String).bytes().collect::<Vec<u8>>()
    };
    ($iter:expr, usize1) => {
        read_value!($iter, usize) - 1
    };
    ($iter:expr, $t:ty) => {
        $iter.next().unwrap().parse::<$t>().expect("Parse error")
    };
}
// ---------- end input macro ----------

use std::io::Write;

fn run() {
    input! {
        p: i64,
        q: usize,
        ask: [(i64, i64); q],
    }
    let mut ans = vec![0; q];
    let mut e = vec![];
    for (i, &(l, r)) in ask.iter().enumerate() {
        if l <= p {
            if l > 1 {
                e.push((l - 1, -1, i));
            }
            e.push((r.min(p), 1, i));
        }
    }
    e.sort_by_key(|e| -e.0);
    let f = |x: i64| x * (x + 1) / 2;
    let mut sum = 0;
    let mut l = 1;
    while l <= p {
        let q = p / l;
        let r = p / q;
        while e.last().map_or(false, |e| e.0 <= r) {
            let (x, sign, k) = e.pop().unwrap();
            ans[k] += sign * (sum + q * (f(x) - f(l - 1)));
        }
        sum += q * (f(r) - f(l - 1));
        l = r + 1;
    }
    let out = std::io::stdout();
    let mut out = std::io::BufWriter::new(out.lock());
    for (ans, (l, r)) in ans.into_iter().zip(ask) {
        let ans = (r - l + 1) * p - ans;
        writeln!(out, "{}", ans).ok();
    }
}

fn main() {
    run();
}