'commit'

TangDou/AcWing_TiGao/T5/YueShuGeShu/1294_2.cpp

@@ -0,0 +1,26 @@
+#include <bits/stdc++.h>
+using namespace std;
+#define int long long
+#define endl '\n'
+const int MOD = 1e9 + 7;
+//	2112 ms
+bool prime(int x) {
+    if (x == 2) return 1;
+    for (int i = 2; i * i <= x; i++)
+        if (x % i == 0) return 0;
+    return 1;
+}
+signed main() {
+    int n;
+    cin >> n;
+
+    int res = 1;
+    for (int i = 2; i <= n; i++) {
+        if (!prime(i)) continue;
+        int x = i;
+        int s = 0;
+        while (x <= n) s += n / x, x *= i;
+        res = res * (2 * s + 1) % MOD;
+    }
+    cout << res << endl;
+}