Q: What is the sum of all factors of the number 1,721,720 including 1,721,720?
A: 5,322,240
The factors of the number 1,721,720 are: 1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 43, 44, 52, 55, 56, 65, 70, 77, 86, 88, 91, 104, 110, 130, 140, 143, 154, 172, 182, 215, 220, 260, 280, 286, 301, 308, 344, 364, 385, 430, 440, 455, 473, 520, 559, 572, 602, 616, 715, 728, 770, 860, 910, 946, 1001, 1118, 1144, 1204, 1430, 1505, 1540, 1720, 1820, 1892, 2002, 2236, 2365, 2408, 2795, 2860, 3010, 3080, 3311, 3640, 3784, 3913, 4004, 4472, 4730, 5005, 5590, 5720, 6020, 6149, 6622, 7826, 8008, 9460, 10010, 11180, 12040, 12298, 13244, 15652, 16555, 18920, 19565, 20020, 22360, 24596, 26488, 30745, 31304, 33110, 39130, 40040, 43043, 49192, 61490, 66220, 78260, 86086, 122980, 132440, 156520, 172172, 215215, 245960, 344344, 430430, 860860, 1721720.
If you add them up, you will get the total of 5,322,240.