题解 | #质因数的个数#从2开始，只要能被整除，就一直除。

#include <stdio.h>
int main() {
    int n;
    while (scanf("%d", &n) != EOF) {
        int count = 0;
        for (int i = 2; i * i <= n; i++) {
            while (n % i == 0) {
                count++;
                n /= i;
            }
        }
        if (n >= 2) count++;
        printf("%d\n", count);
    }
    return 0;
}