AcWing 870. 约数个数
原题链接
简单
作者:
AGITΩ
,
2022-02-15 23:44:48
,
所有人可见
,
阅读 151
#include <iostream>
#include <algorithm>
#include <unordered_map>
#include <vector>
using namespace std;
typedef long long LL;
const int N = 110, mod = 1e9 + 7;
int main()
{
int n;
cin >> n;
unordered_map<int, int> primes;
while (n -- )
{
int x;
cin >> x;
for (int i = 2; i <= x / i; i ++ )
while (x % i == 0)
{
x /= i;
primes[i] ++ ;
}
if (x > 1) primes[x] ++ ;
}
LL res = 1;
for (auto p : primes) res = res * (p.second + 1) % mod;
cout << res << endl;
return 0;
}