Q: What is the sum of all factors of the number 839,840 excluding 839,840?
A: 1,224,040
The factors of the number 839,840 are: 1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 160, 181, 232, 290, 362, 464, 580, 724, 905, 928, 1160, 1448, 1810, 2320, 2896, 3620, 4640, 5249, 5792, 7240, 10498, 14480, 20996, 26245, 28960, 41992, 52490, 83984, 104980, 167968, 209960, 419920, 839840.
If you add them up, you will get the total of 839,841. Now subtract 839,840 to get 1,224,040