Q: What is the sum of all factors of the number 81,280,012 excluding 81,280,012?

 A: 73,891,004

Why is 73,891,004 the sum of all factors of 81,280,012, excluding 81,280,012?

The factors of the number 81,280,012 are: 1, 2, 4, 11, 22, 44, 1847273, 3694546, 7389092, 20320003, 40640006, 81280012.

If you add them up, you will get the total of 81,280,085. Now subtract 81,280,012 to get 73,891,004


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