Q: What is the sum of all factors of the number 869,490 excluding 869,490?

Why is 1,391,418 the sum of all factors of 869,490, excluding 869,490?

The factors of the number 869,490 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 9661, 19322, 28983, 48305, 57966, 86949, 96610, 144915, 173898, 289830, 434745, 869490.

If you add them up, you will get the total of 869,491. Now subtract 869,490 to get 1,391,418

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