Q: What is the sum of all factors of the number 258,216 excluding 258,216?

A: 519,384

Why is 519,384 the sum of all factors of 258,216, excluding 258,216?

The factors of the number 258,216 are: 1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 29, 42, 53, 56, 58, 84, 87, 106, 116, 159, 168, 174, 203, 212, 232, 318, 348, 371, 406, 424, 609, 636, 696, 742, 812, 1113, 1218, 1272, 1484, 1537, 1624, 2226, 2436, 2968, 3074, 4452, 4611, 4872, 6148, 8904, 9222, 10759, 12296, 18444, 21518, 32277, 36888, 43036, 64554, 86072, 129108, 258216.

If you add them up, you will get the total of 258,735. Now subtract 258,216 to get 519,384