Q: What is the sum of all factors of the number 401,431,245 excluding 401,431,245?

A: 263,447,859

Why is 263,447,859 the sum of all factors of 401,431,245, excluding 401,431,245?

The factors of the number 401,431,245 are: 1, 3, 5, 15, 31, 93, 155, 431, 465, 1293, 2003, 2155, 6009, 6465, 10015, 13361, 30045, 40083, 62093, 66805, 186279, 200415, 310465, 863293, 931395, 2589879, 4316465, 12949395, 26762083, 80286249, 133810415, 401431245.

If you add them up, you will get the total of 401,431,508. Now subtract 401,431,245 to get 263,447,859