905577920

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{217687}}^1$

素因数の和:217717

約数の個数: 56

約数和(自身を含む): 2322295584

約数和(自身を除く): 1416717664

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 217687, 435374, 870748, 1088435, 1741496, 2176870, 2829931, 3482992, 4353740, 5659862, 6965984, 8707480, 11319724, 13931968, 14149655, 17414960, 22639448, 28299310, 34829920, 45278896, 56598620, 69659840, 90557792, 113197240, 181115584, 226394480, 452788960, 905577920]

約数ペア:

[(1, 905577920), (2, 452788960), (4, 226394480), (5, 181115584), (8, 113197240), (10, 90557792), (13, 69659840), (16, 56598620), (20, 45278896), (26, 34829920), (32, 28299310), (40, 22639448), (52, 17414960), (64, 14149655), (65, 13931968), (80, 11319724), (104, 8707480), (130, 6965984), (160, 5659862), (208, 4353740), (260, 3482992), (320, 2829931), (416, 2176870), (520, 1741496), (832, 1088435), (1040, 870748), (2080, 435374), (4160, 217687)]