Q: What is the sum of all factors of the number 278,140 excluding 278,140?

 A: 305,996

Why is 305,996 the sum of all factors of 278,140, excluding 278,140?

The factors of the number 278,140 are: 1, 2, 4, 5, 10, 20, 13907, 27814, 55628, 69535, 139070, 278140.

If you add them up, you will get the total of 278,445. Now subtract 278,140 to get 305,996


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