Q: What is the sum of all factors of the number 680,408 excluding 680,408?
A: 670,672
The factors of the number 680,408 are: 1, 2, 4, 8, 17, 34, 68, 136, 5003, 10006, 20012, 40024, 85051, 170102, 340204, 680408.
If you add them up, you will get the total of 681,078. Now subtract 680,408 to get 670,672