#ごめんなさいpypy遅くないです

import sys,random,bisect
from collections import deque,defaultdict
from heapq import heapify,heappop,heappush
from itertools import permutations
from math import gcd,log

input = lambda :sys.stdin.readline().rstrip()
mi = lambda :map(int,input().split())
li = lambda :list(mi())

def brute(N):
    res = 0
    for i in range(1,N+1):
        for j in range(i+1,N+1):
            if gcd(i,j) == 1:
                res += 1
    
    return res

M = 10**7
mebius = [1] * (M+1)
phi = [i for i in range(M+1)]
for p in range(2,M+1):
    if phi[p] == p:
        for k in range(p,M+1,p):
            mebius[k] *= -1
        t = p*p
        for k in range(t,M+1,t):
            mebius[k] = 0

    if mebius[p]!=0:
        t = mebius[p]
        for q in range(1,M//p+1):
            phi[q*p] += t * q

for i in range(1,M+1):
    phi[i] += phi[i-1]

for _ in range(int(input())):
    N = int(input())

    res = N*(N-1) - (phi[N]-1)
    print(res)