#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 n=5,s=0,p[300000]={};

int main()
{

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

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


                    if(p[i]==i-1)
            for(int j=i+i;j<=2*100010;j+=i)
                p[j]-=p[j]/i;
                 }

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

 }