Q: What is the sum of all factors of the number 638,438 excluding 638,438?
A: 391,882
The factors of the number 638,438 are: 1, 2, 19, 38, 53, 106, 317, 634, 1007, 2014, 6023, 12046, 16801, 33602, 319219, 638438.
If you add them up, you will get the total of 638,829. Now subtract 638,438 to get 391,882