Q: What is the sum of all factors of the number 520,661,540 including 520,661,540?

Why is 1,249,588,032 the sum of all factors of 520,661,540, including 520,661,540?

The factors of the number 520,661,540 are: 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 3719011, 7438022, 14876044, 18595055, 26033077, 37190110, 52066154, 74380220, 104132308, 130165385, 260330770, 520661540.

If you add them up, you will get the total of 1,249,588,032.

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