Q: What is the sum of all factors of the number 647,667,735 excluding 647,667,735?

A: 569,770,473

Why is 569,770,473 the sum of all factors of 647,667,735, excluding 647,667,735?

The factors of the number 647,667,735 are: 1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 143, 165, 195, 429, 715, 2145, 301943, 905829, 1509715, 3321373, 3925259, 4529145, 9964119, 11775777, 16606865, 19626295, 43177849, 49820595, 58878885, 129533547, 215889245, 647667735.

If you add them up, you will get the total of 647,668,304. Now subtract 647,667,735 to get 569,770,473