Q: What is the sum of all factors of the number 638,340 excluding 638,340?
A: 1,149,180
The factors of the number 638,340 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 10639, 21278, 31917, 42556, 53195, 63834, 106390, 127668, 159585, 212780, 319170, 638340.
If you add them up, you will get the total of 638,341. Now subtract 638,340 to get 1,149,180