Q: What is the sum of all factors of the number 3,899,870 excluding 3,899,870?

Why is 3,750,850 the sum of all factors of 3,899,870, excluding 3,899,870?

The factors of the number 3,899,870 are: 1, 2, 5, 10, 13, 26, 65, 130, 131, 229, 262, 458, 655, 1145, 1310, 1703, 2290, 2977, 3406, 5954, 8515, 14885, 17030, 29770, 29999, 59998, 149995, 299990, 389987, 779974, 1949935, 3899870.

If you add them up, you will get the total of 3,899,873. Now subtract 3,899,870 to get 3,750,850

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