Q: What is the sum of all factors of the number 10,420,140 excluding 10,420,140?

Why is 18,756,420 the sum of all factors of 10,420,140, excluding 10,420,140?

The factors of the number 10,420,140 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 173669, 347338, 521007, 694676, 868345, 1042014, 1736690, 2084028, 2605035, 3473380, 5210070, 10420140.

If you add them up, you will get the total of 10,420,158. Now subtract 10,420,140 to get 18,756,420

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