#include <bits/stdc++.h>

using namespace std;

using int64 = long long;


int main() {
  int P, Q;
  cin >> P >> Q;

  vector< pair< pair< int, int >, int > > rad;
  int ptr = 1;
  while(ptr <= P) {
    int ok = ptr, ng = P + 1;
    int real = P / ptr;
    while(ng - ok > 1) {
      int mid = (ok + ng) / 2;
      if(P / mid == real) ok = mid;
      else ng = mid;
    }
    rad.emplace_back(make_pair(ptr, ok), P / ptr);
    ptr = ok + 1;
  }

  vector< int64 > sum;
  sum.push_back(0);
  int64 add = 0LL;
  for(auto &p : rad) {
    auto range = p.first;
    auto val = p.second;
    int latte = range.first;
    int malta = range.second;
    add += val * (1LL * latte * (latte - 1) / 2);
    add -= val * (1LL * malta * (malta + 1) / 2);
    sum.push_back(add);
  }

  auto get = [&](int L) {
    __int128_t add = 1LL * P * L;
    auto it1 = lower_bound(begin(rad), end(rad), make_pair(make_pair(L, -1), L)) - begin(rad);
    --it1;
    add += sum[it1];
    for(int i = it1; i < rad.size(); i++) {
      auto &p = rad[i];
      auto range = p.first;
      auto val = p.second;
      int latte = range.first;
      int malta = min(range.second, L);
      if(latte > malta) break;
      add += val * (1LL * latte * (latte - 1) / 2);
      add -= val * (1LL * malta * (malta + 1) / 2);
    }
    return (int64) add;
  };

  while(Q--) {
    int L, R;
    cin >> L >> R;
    cout << get(R) - get(L - 1) << endl;
  }

}