Q: What is the sum of all factors of the number 404,520 including 404,520?

Why is 1,213,920 the sum of all factors of 404,520, including 404,520?

The factors of the number 404,520 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 3371, 6742, 10113, 13484, 16855, 20226, 26968, 33710, 40452, 50565, 67420, 80904, 101130, 134840, 202260, 404520.

If you add them up, you will get the total of 1,213,920.

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