Q: What is the sum of all factors of the number 748,280 excluding 748,280?

Why is 1,066,120 the sum of all factors of 748,280, excluding 748,280?

The factors of the number 748,280 are: 1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1439, 2878, 5756, 7195, 11512, 14390, 18707, 28780, 37414, 57560, 74828, 93535, 149656, 187070, 374140, 748280.

If you add them up, you will get the total of 748,281. Now subtract 748,280 to get 1,066,120

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