Q: What is the sum of all factors of the number 1,331,668 including 1,331,668?

Why is 2,509,780 the sum of all factors of 1,331,668, including 1,331,668?

The factors of the number 1,331,668 are: 1, 2, 4, 13, 26, 52, 25609, 51218, 102436, 332917, 665834, 1331668.

If you add them up, you will get the total of 2,509,780.

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