Q: What is the sum of all factors of the number 249,920 excluding 249,920?

 A: 408,448

Why is 408,448 the sum of all factors of 249,920, excluding 249,920?

The factors of the number 249,920 are: 1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 71, 80, 88, 110, 142, 160, 176, 220, 284, 320, 352, 355, 440, 568, 704, 710, 781, 880, 1136, 1420, 1562, 1760, 2272, 2840, 3124, 3520, 3905, 4544, 5680, 6248, 7810, 11360, 12496, 15620, 22720, 24992, 31240, 49984, 62480, 124960, 249920.

If you add them up, you will get the total of 250,328. Now subtract 249,920 to get 408,448


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