Q: What is the sum of all factors of the number 1,381,780 including 1,381,780?
A: 2,953,440
The factors of the number 1,381,780 are: 1, 2, 4, 5, 10, 20, 59, 118, 236, 295, 590, 1171, 1180, 2342, 4684, 5855, 11710, 23420, 69089, 138178, 276356, 345445, 690890, 1381780.
If you add them up, you will get the total of 2,953,440.