Giúp em với, bằng ngôn ngữ C++ ạ, Tính Ước 1

#include <iostream>

#define ll long long

using namespace std;

int main() {

  ll n, res=0; cin >> n;
  for (ll i=1; i*i<=n; ++i) {
    if (n % i == 0) {
      if (i * i != n) res += 2;
      else res += 1;
    }
  }

  cout << res;
  
}

$\\$
$\\$
\begin{array}{c|c|c}\color{#ffd710}{\texttt{\{}} \color{#8655d6}{\texttt{\{}}\ \ \color{#8cdcda}{\text{Daoanhviet96}}\ \ \color{#8655d6}{\texttt{\}}} \color{#ffd710}{\texttt{\}}}\end{array}

#include <iostream>

#include <math.h>

using namespace std;

int main() {

long long n;

cin >> n;

long long d=2;

for (long long i=2; i<=sqrt(n); i++) {

if (i==sqrt(n)) d++;

else {

if (n%i==0) d+=2;     // co 2 uoc la: i va n/i

}

}

cout << d;

}