include <bits/stdc++.h>

using namespace std; int main() { int n; int cem=0; cin>>n; for(int i=1; i<=n;i++) { if(n%i==0) { cem+=i; } } cout<<cem; }//NAHID ZEYD VE RESADDAN PROOO!!!!!!!

include <bits/stdc++.h>

using namespace std; int main() { int n; int cem=0; cin>>n; for(int i=1; i<=n;i++) { if(n%i==0) { cem+=i; } } cout<<cem; }//NAHID ZEYD VE RESADDAN PROOO!!!!!!!

include <bits/stdc++.h>

using namespace std;

int main() { int n,a=0,b,c,d,x,i,son,hasil=1,V,E,F; cin>>n; for (i=1; i<=n; i++) if (n%i==0) a=a+i; cout<<a;

}

include <bits/stdc++.h>

using namespace std;

int main() { int n,a=0,b,c,d,x,i,son,hasil=1,V,E,F; cin>>n; for (i=1; i<=n; i++) if (n%i==0) a=a+i; cout<<a;

}

nahid dur hoppan burdan