Q: What is the sum of all factors of the number 1,394,920 including 1,394,920?

Why is 3,215,520 the sum of all factors of 1,394,920, including 1,394,920?

The factors of the number 1,394,920 are: 1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 811, 860, 1622, 1720, 3244, 4055, 6488, 8110, 16220, 32440, 34873, 69746, 139492, 174365, 278984, 348730, 697460, 1394920.

If you add them up, you will get the total of 3,215,520.

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