Q: What is the sum of all factors of the number 1,290,660 including 1,290,660?
A: 4,213,440
The factors of the number 1,290,660 are: 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 439, 490, 588, 735, 878, 980, 1317, 1470, 1756, 2195, 2634, 2940, 3073, 4390, 5268, 6146, 6585, 8780, 9219, 12292, 13170, 15365, 18438, 21511, 26340, 30730, 36876, 43022, 46095, 61460, 64533, 86044, 92190, 107555, 129066, 184380, 215110, 258132, 322665, 430220, 645330, 1290660.
If you add them up, you will get the total of 4,213,440.