Q: What is the sum of all factors of the number 405,438 excluding 405,438?
A: 479,298
The factors of the number 405,438 are: 1, 2, 3, 6, 11, 22, 33, 66, 6143, 12286, 18429, 36858, 67573, 135146, 202719, 405438.
If you add them up, you will get the total of 405,917. Now subtract 405,438 to get 479,298