Q: What is the sum of all factors of the number 123,220 excluding 123,220?
A: 142,388
The factors of the number 123,220 are: 1, 2, 4, 5, 10, 20, 61, 101, 122, 202, 244, 305, 404, 505, 610, 1010, 1220, 2020, 6161, 12322, 24644, 30805, 61610, 123220.
If you add them up, you will get the total of 123,362. Now subtract 123,220 to get 142,388