Q: What is the sum of all factors of the number 12,520,890 excluding 12,520,890?

 A: 20,033,658

Why is 20,033,658 the sum of all factors of 12,520,890, excluding 12,520,890?

The factors of the number 12,520,890 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 139121, 278242, 417363, 695605, 834726, 1252089, 1391210, 2086815, 2504178, 4173630, 6260445, 12520890.

If you add them up, you will get the total of 12,520,910. Now subtract 12,520,890 to get 20,033,658


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