Q: What is the sum of all factors of the number 387,388,665 excluding 387,388,665?
A: 290,612,295
The factors of the number 387,388,665 are: 1, 3, 5, 9, 15, 45, 103, 309, 515, 927, 1545, 4635, 83579, 250737, 417895, 752211, 1253685, 3761055, 8608637, 25825911, 43043185, 77477733, 129129555, 387388665.
If you add them up, you will get the total of 387,388,955. Now subtract 387,388,665 to get 290,612,295