Q: What is the sum of all factors of the number 1,861,880 including 1,861,880?

Why is 4,244,400 the sum of all factors of 1,861,880, including 1,861,880?

The factors of the number 1,861,880 are: 1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 523, 712, 890, 1046, 1780, 2092, 2615, 3560, 4184, 5230, 10460, 20920, 46547, 93094, 186188, 232735, 372376, 465470, 930940, 1861880.

If you add them up, you will get the total of 4,244,400.

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