Q: What is the sum of all factors of the number 205,420 including 205,420?
A: 431,424
The factors of the number 205,420 are: 1, 2, 4, 5, 10, 20, 10271, 20542, 41084, 51355, 102710, 205420.
If you add them up, you will get the total of 431,424.