Q: What is the sum of all factors of the number 388,040 including 388,040?
A: 891,000
The factors of the number 388,040 are: 1, 2, 4, 5, 8, 10, 20, 40, 89, 109, 178, 218, 356, 436, 445, 545, 712, 872, 890, 1090, 1780, 2180, 3560, 4360, 9701, 19402, 38804, 48505, 77608, 97010, 194020, 388040.
If you add them up, you will get the total of 891,000.