Q: What is the sum of all factors of the number 403,216 excluding 403,216?

A: 489,584

Why is 489,584 the sum of all factors of 403,216, excluding 403,216?

The factors of the number 403,216 are: 1, 2, 4, 8, 11, 16, 22, 29, 44, 58, 79, 88, 116, 158, 176, 232, 316, 319, 464, 632, 638, 869, 1264, 1276, 1738, 2291, 2552, 3476, 4582, 5104, 6952, 9164, 13904, 18328, 25201, 36656, 50402, 100804, 201608, 403216.

If you add them up, you will get the total of 403,705. Now subtract 403,216 to get 489,584