题库练习 Relatively Prime Powers
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A11998 | Relatively Prime Powers

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内存限制256MB
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题目描述

Consider some positive integer $x$ . Its prime factorization will be of form $x = 2^{k_1} \cdot 3^{k_2} \cdot 5^{k_3} \cdot \dots$

Let's call $x$ elegant if the greatest common divisor of the sequence $k_1, k_2, \dots$ is equal to $1$ . For example, numbers $5 = 5^1$ , $12 = 2^2 \cdot 3$ , $72 = 2^3 \cdot 3^2$ are elegant and numbers $8 = 2^3$ ( $GCD = 3$ ), $2500 = 2^2 \cdot 5^4$ ( $GCD = 2$ ) are not.

Count the number of elegant integers from $2$ to $n$ .

Each testcase contains several values of $n$ , for each of them you are required to solve the problem separately.

输入格式

The first line contains a single integer $T$ ( $1 \le T \le 10^5$ ) — the number of values of $n$ in the testcase.

Each of the next $T$ lines contains a single integer $n_i$ ( $2 \le n_i \le 10^{18}$ ).

输出格式

Print $T$ lines — the $i$ -th line should contain the number of elegant numbers from $2$ to $n_i$ .

输入输出样例

输入 #1
4
4
2
72
10
输出 #1
2
1
61
6
C++ 编辑器
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