Q: What is the sum of all factors of the number 453,440 excluding 453,440?

A: 720,040

Why is 720,040 the sum of all factors of 453,440, excluding 453,440?

The factors of the number 453,440 are: 1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 109, 130, 160, 208, 218, 260, 320, 416, 436, 520, 545, 832, 872, 1040, 1090, 1417, 1744, 2080, 2180, 2834, 3488, 4160, 4360, 5668, 6976, 7085, 8720, 11336, 14170, 17440, 22672, 28340, 34880, 45344, 56680, 90688, 113360, 226720, 453440.

If you add them up, you will get the total of 454,160. Now subtract 453,440 to get 720,040