Q: What is the sum of all factors of the number 1,389,990 excluding 1,389,990?

 A: 2,423,130

Why is 2,423,130 the sum of all factors of 1,389,990, excluding 1,389,990?

The factors of the number 1,389,990 are: 1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 6619, 13238, 19857, 33095, 39714, 46333, 66190, 92666, 99285, 138999, 198570, 231665, 277998, 463330, 694995, 1389990.

If you add them up, you will get the total of 1,389,992. Now subtract 1,389,990 to get 2,423,130


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