Q: What is the sum of all factors of the number 383,240 excluding 383,240?

A: 644,920

Why is 644,920 the sum of all factors of 383,240, excluding 383,240?

The factors of the number 383,240 are: 1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 67, 88, 104, 110, 130, 134, 143, 220, 260, 268, 286, 335, 440, 520, 536, 572, 670, 715, 737, 871, 1144, 1340, 1430, 1474, 1742, 2680, 2860, 2948, 3484, 3685, 4355, 5720, 5896, 6968, 7370, 8710, 9581, 14740, 17420, 19162, 29480, 34840, 38324, 47905, 76648, 95810, 191620, 383240.

If you add them up, you will get the total of 383,884. Now subtract 383,240 to get 644,920