Q: What is the sum of all factors of the number 243,420 excluding 243,420?
A: 438,324
The factors of the number 243,420 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 4057, 8114, 12171, 16228, 20285, 24342, 40570, 48684, 60855, 81140, 121710, 243420.
If you add them up, you will get the total of 243,858. Now subtract 243,420 to get 438,324