Q: What is the sum of all factors of the number 1,661,200 including 1,661,200?

Why is 3,991,994 the sum of all factors of 1,661,200, including 1,661,200?

The factors of the number 1,661,200 are: 1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 4153, 8306, 16612, 20765, 33224, 41530, 66448, 83060, 103825, 166120, 207650, 332240, 415300, 830600, 1661200.

If you add them up, you will get the total of 3,991,994.

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