Q: What is the sum of all factors of the number 328,640 excluding 328,640?

A: 524,800

Why is 524,800 the sum of all factors of 328,640, excluding 328,640?

The factors of the number 328,640 are: 1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 79, 80, 104, 130, 158, 160, 208, 260, 316, 320, 395, 416, 520, 632, 790, 832, 1027, 1040, 1264, 1580, 2054, 2080, 2528, 3160, 4108, 4160, 5056, 5135, 6320, 8216, 10270, 12640, 16432, 20540, 25280, 32864, 41080, 65728, 82160, 164320, 328640.

If you add them up, you will get the total of 329,164. Now subtract 328,640 to get 524,800