#define _USE_MATH_DEFINES
#include "bits/stdc++.h"
using namespace std;
#define FOR(i,j,k) for(int (i)=(j);(i)<(int)(k);++(i))
#define rep(i,j) FOR(i,0,j)
#define each(x,y) for(auto &(x):(y))
#define mp make_pair
#define MT make_tuple
#define all(x) (x).begin(),(x).end()
#define debug(x) cout<<#x<<": "<<(x)<<endl
#define smax(x,y) (x)=max((x),(y))
#define smin(x,y) (x)=min((x),(y))
#define MEM(x,y) memset((x),(y),sizeof (x))
#define sz(x) (int)(x).size()
#define RT return
using ll = long long;
using pii = pair<int, int>;
using vi = vector<int>;
using vll = vector<ll>;

// 10^3 * 10^5
// 余りはO(sqrt(N)個の等差数列)
const int T = 1000001;
int P, Q;
ll sm[T], upto[T];

void solve() {
    cin >> P >> Q;

    for (int i = 1; i<T; ++i) {
        sm[i] = sm[i - 1] + P % i;
        upto[i] = P / i;
    }
    upto[0] = 1000000000;

    while (Q--) {
        int l, r;
        cin >> l >> r;
        ll ans = 0;
        if (r < T) {
            ans = sm[r] - sm[l - 1];
        } else {
            if (l < T) {
                ans += sm[T-1] - sm[l - 1];
            }
            // n = med+1からまとめて足す
            ll to = P / r, L = max(l, T);
            ll diff = P / L;

            while (diff >= to) {
                ll R = min<ll>(upto[diff], r);
                ll a = P % L, n = R - L + 1;
                ans += (2 * a + (n-1)*(-diff))*n / 2;
                diff--;
                L = R + 1;
            }
        }
        cout << ans << endl;
    }
}

int main() {
	ios::sync_with_stdio(false);
	cin.tie(0);
	cout << fixed << setprecision(15);
	solve();
	return 0;
}