Q: What is the sum of all factors of the number 2,623,660 excluding 2,623,660?

Why is 3,310,436 the sum of all factors of 2,623,660, excluding 2,623,660?

The factors of the number 2,623,660 are: 1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 10091, 20182, 40364, 50455, 100910, 131183, 201820, 262366, 524732, 655915, 1311830, 2623660.

If you add them up, you will get the total of 2,623,663. Now subtract 2,623,660 to get 3,310,436

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