17990198780

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{229}}^1\times {\mathrm{38891}}^1$

素因数の和:39230

約数の個数: 48

約数和(自身を含む): 38321065440

約数和(自身を除く): 20330866660

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 229, 404, 458, 505, 916, 1010, 1145, 2020, 2290, 4580, 23129, 38891, 46258, 77782, 92516, 115645, 155564, 194455, 231290, 388910, 462580, 777820, 3927991, 7855982, 8906039, 15711964, 17812078, 19639955, 35624156, 39279910, 44530195, 78559820, 89060390, 178120780, 899509939, 1799019878, 3598039756, 4497549695, 8995099390, 17990198780]

約数ペア:

[(1, 17990198780), (2, 8995099390), (4, 4497549695), (5, 3598039756), (10, 1799019878), (20, 899509939), (101, 178120780), (202, 89060390), (229, 78559820), (404, 44530195), (458, 39279910), (505, 35624156), (916, 19639955), (1010, 17812078), (1145, 15711964), (2020, 8906039), (2290, 7855982), (4580, 3927991), (23129, 777820), (38891, 462580), (46258, 388910), (77782, 231290), (92516, 194455), (115645, 155564)]