Q: What is the sum of all factors of the number 427,420 excluding 427,420?
A: 637,028
The factors of the number 427,420 are: 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 71, 86, 140, 142, 172, 215, 284, 301, 355, 430, 497, 602, 710, 860, 994, 1204, 1420, 1505, 1988, 2485, 3010, 3053, 4970, 6020, 6106, 9940, 12212, 15265, 21371, 30530, 42742, 61060, 85484, 106855, 213710, 427420.
If you add them up, you will get the total of 428,057. Now subtract 427,420 to get 637,028