#include<fstream>
#define inf "sum.in"
#define outf "sum.out"
#define MAX 100010
using namespace std;

fstream f(inf,ios::in),g(outf,ios::out);

int N,X;
long long phi[MAX];
bool uz[MAX];

int main()
{
long long i,j,sum;
for(i=1;i<=MAX;i++)phi[i]=i-1;
for( i=2;i<=MAX;i++)
    if(!uz[i])
        if( 2*i <= MAX )
            for(j=2*i;j<=MAX;j+=i) { phi[j]-=phi[i]; uz[j]=true; }

f>>N;
for(int i=1;i<=N;i++)
    {
    f>>X;
    sum=2*X*phi[X];
    g<< sum <<"\n";
    }
f.close();
g.close();
return 0;
}