Q: What is the sum of all factors of the number 1,681,409 excluding 1,681,409?
A: 80,383
The factors of the number 1,681,409 are: 1, 31, 73, 743, 2263, 23033, 54239, 1681409.
If you add them up, you will get the total of 1,681,489. Now subtract 1,681,409 to get 80,383