Q: What is the sum of all factors of the number 654,636,765 excluding 654,636,765?

A: 490,183,971

Why is 490,183,971 the sum of all factors of 654,636,765, excluding 654,636,765?

The factors of the number 654,636,765 are: 1, 3, 5, 15, 17, 31, 51, 85, 93, 155, 255, 465, 527, 1581, 2635, 7905, 82813, 248439, 414065, 1242195, 1407821, 2567203, 4223463, 7039105, 7701609, 12836015, 21117315, 38508045, 43642451, 130927353, 218212255, 654636765.

If you add them up, you will get the total of 654,637,255. Now subtract 654,636,765 to get 490,183,971