Q: What is the sum of all factors of the number 383,640 excluding 383,640?

A: 825,960

Why is 825,960 the sum of all factors of 383,640, excluding 383,640?

The factors of the number 383,640 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 139, 184, 230, 276, 278, 345, 417, 460, 552, 556, 690, 695, 834, 920, 1112, 1380, 1390, 1668, 2085, 2760, 2780, 3197, 3336, 4170, 5560, 6394, 8340, 9591, 12788, 15985, 16680, 19182, 25576, 31970, 38364, 47955, 63940, 76728, 95910, 127880, 191820, 383640.

If you add them up, you will get the total of 384,465. Now subtract 383,640 to get 825,960