Q: What is the sum of all factors of the number 382,720 excluding 382,720?

A: 647,456

Why is 647,456 the sum of all factors of 382,720, excluding 382,720?

The factors of the number 382,720 are: 1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 64, 65, 80, 92, 104, 115, 128, 130, 160, 184, 208, 230, 256, 260, 299, 320, 368, 416, 460, 520, 598, 640, 736, 832, 920, 1040, 1196, 1280, 1472, 1495, 1664, 1840, 2080, 2392, 2944, 2990, 3328, 3680, 4160, 4784, 5888, 5980, 7360, 8320, 9568, 11960, 14720, 16640, 19136, 23920, 29440, 38272, 47840, 76544, 95680, 191360, 382720.

If you add them up, you will get the total of 383,367. Now subtract 382,720 to get 647,456