Q: What is the sum of all factors of the number 1,240,420 excluding 1,240,420?
A: 1,392,980
The factors of the number 1,240,420 are: 1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 569, 1090, 1138, 2180, 2276, 2845, 5690, 11380, 62021, 124042, 248084, 310105, 620210, 1240420.
If you add them up, you will get the total of 1,240,421. Now subtract 1,240,420 to get 1,392,980