#include <iostream>
#include <stdio.h>
using namespace std;
long long maxim(long long a,long long b)
{
    if(a<b)
         return b;
    else return a;
}
long long minim(long long a,long long b)
{
    if(a<b)
         return a;
    else return b;
}
    long long n=5,s=0,p[300000]={};

int main()
{

FILE *pFile=fopen("sum.in","r");
 fscanf(pFile,"%lld",&n);


for(long long i=1;i<=2*100010;i++)
     p[i]=i-1;
    for(long long i=2;i<=2*100010;i++){
                 for(long long j=i+i;j<=2*100010;j+=i){

                  p[j]-=p[i];
                 }


         }
         long long aux;
          FILE * pF=fopen("sum.out","w+");;
for(long long i=1;i<=n;i++){
 fscanf(pFile,"%lld",&aux);
 aux=p[aux]*2*aux;
 fprintf(pF,"%llu \n",aux);
}
    // for (long long i = 1; i <= 2*n; ++i){
//    phi[i]=i
  //  v[i]+=i;
   // }
//cout<<v[6]<<"  ";

//     cout<<i<<"  "<<phi[i]<<"\n";//cout<<i<<"  "<<v[i]<<"\n";
 }