#include <cstdint>
#include <cstdio>
#include <algorithm>
#include <vector>

int main() {
  intmax_t p;
  int q;
  scanf("%jd %d", &p, &q);

  std::vector<intmax_t> d{0};
  {
    std::vector<intmax_t> tmp;
    for (intmax_t i = 1; i*i <= p; ++i) {
      d.push_back(i);
      if (i*i < p) tmp.push_back(p/i);
    }
    d.insert(d.end(), tmp.rbegin(), tmp.rend());
  }

  std::vector<intmax_t> s{0};
  for (size_t i = 1; i < d.size(); ++i) {
    intmax_t dl = d[i-1]+1;
    intmax_t dr = d[i];
    intmax_t sum = ((p % dl) + (p % dr)) * (dr-dl+1) / 2;
    s.push_back(sum);
  }

  s.insert(s.begin(), 0);
  for (size_t i = 1; i < s.size(); ++i) s[i] += s[i-1];

  auto f = [&](intmax_t r) -> intmax_t {
    if (r == 0) return 0;
    auto it = std::upper_bound(d.begin(), d.end(), r);
    size_t j = it - d.begin();
    intmax_t dl = it[-1]+1;
    intmax_t dr = r;
    return s[j] + ((p % dl) + (p % dr)) * (dr-dl+1) / 2;
  };

  for (int i = 0; i < q; ++i) {
    intmax_t l, r;
    scanf("%jd %jd", &l, &r);
    printf("%jd\n", f(r)-f(l-1));
  }
}