Q: What is the sum of all factors of the number 665,145 including 665,145?

Why is 1,276,800 the sum of all factors of 665,145, including 665,145?

The factors of the number 665,145 are: 1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 379, 585, 1137, 1755, 1895, 3411, 4927, 5685, 10233, 14781, 17055, 24635, 44343, 51165, 73905, 133029, 221715, 665145.

If you add them up, you will get the total of 1,276,800.

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