Q: What is the sum of all factors of the number 9,977,990 excluding 9,977,990?

 A: 9,615,370

Why is 9,615,370 the sum of all factors of 9,977,990, excluding 9,977,990?

The factors of the number 9,977,990 are: 1, 2, 5, 10, 11, 22, 55, 110, 90709, 181418, 453545, 907090, 997799, 1995598, 4988995, 9977990.

If you add them up, you will get the total of 9,977,999. Now subtract 9,977,990 to get 9,615,370


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