Language: C++

#include <bits/stdc++.h>
#define rep(i, n) for(long long int i = 0; i < n; i++)
#define _rep(i, m, n) for(long long int i = m; i < n; i++)
using namespace std;
typedef long #include <bits/stdc++.h>
#define rep(i, n) for(long long int i = 0; i < n; i++)
#define _rep(i, m, n) for(long long int i = m; i < n; i++)
using namespace std;
typedef long long ll;
typedef pair<int, int> P;
const int N = 1000000;
const ll mod = 1000000007;
const int dx[4] = {1, 0, -1, 0};
const int dy[4] = {0, 1, 0, -1};

ll gcd(ll A, ll B){
    if(B == 0)return A;
    return gcd(B, A % B);
}
ll lcm(ll A, ll B){
    return A * B / gcd(A, B);
}

/*------------------------------------------------------------------*/
int main(){
    ll a, b; cin >> a >> b;
    ll GCD = gcd(a, b);

    map<ll,ll> factor;
    for(int i = 2; i * i <= GCD; i++){
        while(GCD % i == 0){
            factor[i]++;
            GCD /= i;
        }
    }
    if(GCD != 1) factor[GCD] = 1;

    cout << factor.size() + 1 << endl; 
}long ll;
typedef pair<int, int> P;
const int N = 1000000;
const ll mod = 1000000007;
const int dx[4] = {1, 0, -1, 0};
const int dy[4] = {0, 1, 0, -1};

ll gcd(ll A, ll B){
    if(B == 0)return A;
    return gcd(B, A % B);
}
ll lcm(ll A, ll B){
    return A * B / gcd(A, B);
}

/*------------------------------------------------------------------*/
int main(){
    ll a, b; cin >> a >> b;
    ll GCD = gcd(a, b);

    map<ll,ll> factor;
    for(int i = 2; i * i <= GCD; i++){
        while(GCD % i == 0){
            factor[i]++;
            GCD /= i;
        }
    }
    if(GCD != 1) factor[GCD] = 1;

    cout << factor.size() + 1 << endl; 
}

Compiler output:
a.cc:5:14: error: stray '#' in program
    5 | typedef long #include <bits/stdc++.h>
      |              ^
a.cc:5:23: error: expected initializer before '<' token
    5 | typedef long #include <bits/stdc++.h>
      |                       ^
a.cc:39:7: error: 'long int ll' redeclared as different kind of entity
   39 | }long ll;
      |       ^~
a.cc:9:19: note: previous declaration 'typedef long long int ll'
    9 | typedef long long ll;
      |                   ^~
a.cc:41:11: error: redefinition of 'const int N'
   41 | const int N = 1000000;
      |           ^
a.cc:11:11: note: 'const int N' previously defined here
   11 | const int N = 1000000;
      |           ^
a.cc:42:10: error: redefinition of 'const ll mod'
   42 | const ll mod = 1000000007;
      |          ^~~
a.cc:12:10: note: 'const ll mod' previously defined here
   12 | const ll mod = 1000000007;
      |          ^~~
a.cc:43:11: error: redefinition of 'const int dx [4]'
   43 | const int dx[4] = {1, 0, -1, 0};
      |           ^~
a.cc:13:11: note: 'const int dx [4]' previously defined here
   13 | const int dx[4] = {1, 0, -1, 0};
      |           ^~
a.cc:44:11: error: redefinition of 'const int dy [4]'
   44 | const int dy[4] = {0, 1, 0, -1};
      |           ^~
a.cc:14:11: note: 'const int dy [4]' previously defined here
   14 | const int dy[4] = {0, 1, 0, -1};
      |           ^~
a.cc:46:4: error: redefinition of 'll gcd(ll, ll)'
   46 | ll gcd(ll A, ll B){
      |    ^~~
a.cc:16:4: note: 'll gcd(ll, ll)' previously defined here
   16 | ll gcd(ll A, ll B){
      |    ^~~
a.cc:50:4: error: redefinition of 'll lcm(ll, ll)'
   50 | ll lcm(ll A, ll B){
      |    ^~~
a.cc:20:4: note: 'll lcm(ll, ll)' previously defined here
   20 | ll lcm(ll A, ll B){
      |    ^~~
a.cc:55:5: error: redefinition of 'int main()'
   55 | int main(){
      |     ^~~~
a.cc:25:5: note: 'int main()' previously defined here
   25 | int main(){
      |     ^~~~