Data update

Task/Arithmetic-numbers/JavaScript/arithmetic-numbers.js

@@ -0,0 +1,50 @@
+// Arithmetic numbers
+
+var n = 1;
+var arithmCnt = 0;
+var composCnt = 0;
+var outStr = new String();
+console.log("The first 100 arithmetic numbers are:");
+while (arithmCnt < 1000001) {
+  let dv = 1;
+  let dvCnt = 0;
+  let sum = 0;
+  while (true) {
+    quot = Math.floor(n / dv);
+    if (quot < dv)
+      break;
+    if (quot == dv && n % dv == 0) {
+      // n is a square
+      sum += quot;
+      dvCnt++;
+      break;
+    }
+    if (n % dv == 0) {
+      sum += dv + quot;
+      dvCnt += 2;
+    }
+    dv++;
+  }
+  if (sum % dvCnt == 0) {
+    // n is arithmetic
+    arithmCnt++;
+    if (arithmCnt <= 100) {
+      outStr += n.toString().padStart(4, ' ');
+      if (arithmCnt % 10 == 0) {
+        console.log(outStr);
+        outStr = "";
+      }
+    }
+    if (dvCnt > 2)
+      composCnt++;
+    if (arithmCnt == 1000 || arithmCnt == 10000 || arithmCnt == 100000 || arithmCnt == 1000000) {
+      console.log(outStr);
+      outStr = "The " + arithmCnt.toString().padStart(7, ' ') +
+          "th arithmetic number is " + n.toString().padStart(8, ' ') +
+          " up to which " + composCnt.toString().padStart(6, ' ') +
+          " are composite.";
+    }
+  }
+  n++;
+}
+console.log(outStr);