Data update

Task/Arithmetic-numbers/TypeScript/arithmetic-numbers.ts

@@ -0,0 +1,32 @@
+function divisors(n: number): number[] {
+    const divs = [1, n];
+    const sqr = Math.sqrt(n);
+    for (let d = 2; d <= sqr; d++) {
+        if (n % d == 0) {
+            divs.push(d);
+            if (d != sqr) divs.push(n / d);
+        }
+    }  // We don't really need to sort them for this task but it's nice to make
+    return divs.toSorted(function(a, b) {return a - b});  // functions reusable
+}
+
+let count = 0;
+let val = 0;
+let composites = 0;
+const arithList: number[] =[];
+const printValues = [1000, 10000, 100000, 1000000];
+while (count < 10**6) {
+    val += 1;
+    const divList = divisors(val);
+    const average = divList.reduce((a, b) => a + b) / divList.length;
+    if (Number.isInteger(average)) {
+        count += 1;
+        if (divList.length > 2) composites++;
+        if (count <= 100) arithList.push(val);
+        if (count == 100) console.log(arithList);
+        if (printValues.includes(count)) {
+            console.log("The " + count + "th arithmetic number is " + val);
+            console.log(composites + " of the first " + count + " are composite\n");
+        }
+    }
+}