Q: What is the sum of all factors of the number 672,440 excluding 672,440?
A: 840,640
The factors of the number 672,440 are: 1, 2, 4, 5, 8, 10, 20, 40, 16811, 33622, 67244, 84055, 134488, 168110, 336220, 672440.
If you add them up, you will get the total of 673,280. Now subtract 672,440 to get 840,640