Q: What is the sum of all factors of the number 20,005,245 excluding 20,005,245?

 A: 18,298,755

Why is 18,298,755 the sum of all factors of 20,005,245, excluding 20,005,245?

The factors of the number 20,005,245 are: 1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 11399, 34197, 56995, 102591, 148187, 170985, 307773, 444561, 512955, 740935, 1333683, 1538865, 2222805, 4001049, 6668415, 20005245.

If you add them up, you will get the total of 20,005,263. Now subtract 20,005,245 to get 18,298,755


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