From ef34ceb69ad5d483581b0285ff67025b3af27b98 Mon Sep 17 00:00:00 2001
From: Ukj0ng <90972240+Ukj0ng@users.noreply.github.com>
Date: Tue, 27 Jan 2026 12:23:06 +0900
Subject: [PATCH] =?UTF-8?q?[20260127]=20BOJ=20/=20G4=20/=20=EC=95=BD?=
 =?UTF-8?q?=EC=88=98=EC=9D=98=20=ED=95=A9=20/=20=ED=95=9C=EC=A2=85?=
 =?UTF-8?q?=EC=9A=B1?=
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---
 ...5\354\210\230\354\235\230 \355\225\251.md" | 43 +++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 "Ukj0ng/202601/27 BOJ G4 \354\225\275\354\210\230\354\235\230 \355\225\251.md"

diff --git "a/Ukj0ng/202601/27 BOJ G4 \354\225\275\354\210\230\354\235\230 \355\225\251.md" "b/Ukj0ng/202601/27 BOJ G4 \354\225\275\354\210\230\354\235\230 \355\225\251.md"
new file mode 100644
index 00000000..2ea4dd4a
--- /dev/null
+++ "b/Ukj0ng/202601/27 BOJ G4 \354\225\275\354\210\230\354\235\230 \355\225\251.md"	
@@ -0,0 +1,43 @@
+```
+import java.io.*;
+import java.util.*;
+
+public class Main {
+    private static final BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+    private static final BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
+    private static final int MAX = 1000000;
+    private static long[] f, g;
+    private static int N;
+
+    public static void main(String[] args) throws IOException {
+        int T = Integer.parseInt(br.readLine());
+        f = new long[MAX+1];
+        g = new long[MAX+1];
+
+        Arrays.fill(f, 1);
+
+        for (int i = 2; i <= MAX; i++) {
+            for (int j = 1; i*j <= MAX; j++) {
+                f[i*j] += i;
+            }
+        }
+
+        for (int i = 1; i <= MAX; i++) {
+            g[i] = g[i-1]+f[i];
+        }
+
+        while (T-->0) {
+            init();
+            bw.write(g[N] + "\n");
+        }
+
+        bw.flush();
+        bw.close();
+        br.close();
+    }
+
+    private static void init() throws IOException {
+        N = Integer.parseInt(br.readLine());
+    }
+}
+```