[Spoj 5971] LCMSum
时间限制：20s 【提交】 空间限制：259MB
题目描述
Given n, calculate the sum LCM(1,n) + LCM(2,n) + .. + LCM(n,n), where LCM(i,n) denotes the Least Common Multiple of the integers i and n.
输入格式
The first line contains T the number of test cases. Each of the next T lines contain an integer n.
输出格式
Output T lines, one for each test case, containing the required sum.
样例输入
3 1 2 5
样例输出
1 4 55
提示
Constraints 1 <= T <= 300000 1 <= n <= 1000000
题目来源
没有写明来源