Q: What is the sum of all factors of the number 1,216,865 excluding 1,216,865?
A: 380,143
The factors of the number 1,216,865 are: 1, 5, 13, 65, 97, 193, 485, 965, 1261, 2509, 6305, 12545, 18721, 93605, 243373, 1216865.
If you add them up, you will get the total of 1,217,245. Now subtract 1,216,865 to get 380,143