20799160

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{419}}^1$

素因数の和:520

約数の個数: 64

約数和(自身を含む): 50349600

約数和(自身を除く): 29550440

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 73, 85, 136, 146, 170, 292, 340, 365, 419, 584, 680, 730, 838, 1241, 1460, 1676, 2095, 2482, 2920, 3352, 4190, 4964, 6205, 7123, 8380, 9928, 12410, 14246, 16760, 24820, 28492, 30587, 35615, 49640, 56984, 61174, 71230, 122348, 142460, 152935, 244696, 284920, 305870, 519979, 611740, 1039958, 1223480, 2079916, 2599895, 4159832, 5199790, 10399580, 20799160]

約数ペア:

[(1, 20799160), (2, 10399580), (4, 5199790), (5, 4159832), (8, 2599895), (10, 2079916), (17, 1223480), (20, 1039958), (34, 611740), (40, 519979), (68, 305870), (73, 284920), (85, 244696), (136, 152935), (146, 142460), (170, 122348), (292, 71230), (340, 61174), (365, 56984), (419, 49640), (584, 35615), (680, 30587), (730, 28492), (838, 24820), (1241, 16760), (1460, 14246), (1676, 12410), (2095, 9928), (2482, 8380), (2920, 7123), (3352, 6205), (4190, 4964)]