#include <iostream>
#include <fstream>
#include <stdlib.h>
using namespace std;

ifstream f("sum.in");
ofstream g("sum.out");

int n, phi[100001];

char k[7];

void indiceleLuiEuler(){

for(int i=1; i<=100000; i++)
    phi[i]=i-1;
for(int i=2; i<=100000; i++)
    for(int j=2*i; j<=100000; j+=i)
        phi[j]-=phi[i];

}

void sum(){

f.getline(k, 7);
n = atoi(k);

while(n--){

f.getline(k, 7);
g<<(long long)2*atoi(k)*phi[atoi(k)]<<"\n";

}

}

int main()
{

indiceleLuiEuler();
sum();

    return 0;
}