Q: What is the sum of all factors of the number 1,380,878 excluding 1,380,878?
A: 690,442
The factors of the number 1,380,878 are: 1, 2, 690439, 1380878.
If you add them up, you will get the total of 1,381,568. Now subtract 1,380,878 to get 690,442