Initial data commit

Task/Proper-divisors/Java/proper-divisors.java

@@ -0,0 +1,33 @@
+import java.util.Collections;
+import java.util.LinkedList;
+import java.util.List;
+
+public class Proper{
+    public static List<Integer> properDivs(int n){
+        List<Integer> divs = new LinkedList<Integer>();
+        if(n == 1) return divs;
+        divs.add(1);
+        for(int x = 2; x < n; x++){
+            if(n % x == 0) divs.add(x);
+        }
+
+        Collections.sort(divs);
+
+        return divs;
+    }
+
+    public static void main(String[] args){
+        for(int x = 1; x <= 10; x++){
+            System.out.println(x + ": " + properDivs(x));
+        }
+
+        int x = 0, count = 0;
+        for(int n = 1; n <= 20000; n++){
+            if(properDivs(n).size() > count){
+                x = n;
+                count = properDivs(n).size();
+            }
+        }
+        System.out.println(x + ": " + count);
+    }
+}