Q: What is the sum of all factors of the number 389,978 excluding 389,978?

 A: 194,992

Why is 194,992 the sum of all factors of 389,978, excluding 389,978?

The factors of the number 389,978 are: 1, 2, 194989, 389978.

If you add them up, you will get the total of 390,172. Now subtract 389,978 to get 194,992


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