Q: What is the sum of all factors of the number 399,870 including 399,870?

Why is 1,067,040 the sum of all factors of 399,870, including 399,870?

The factors of the number 399,870 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 1481, 2962, 4443, 7405, 8886, 13329, 14810, 22215, 26658, 39987, 44430, 66645, 79974, 133290, 199935, 399870.

If you add them up, you will get the total of 1,067,040.

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