91980440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{1009}}^1$

素因数の和:1116

約数の個数: 64

約数和(自身を含む): 215978400

約数和(自身を除く): 123997960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 53, 86, 106, 172, 212, 215, 265, 344, 424, 430, 530, 860, 1009, 1060, 1720, 2018, 2120, 2279, 4036, 4558, 5045, 8072, 9116, 10090, 11395, 18232, 20180, 22790, 40360, 43387, 45580, 53477, 86774, 91160, 106954, 173548, 213908, 216935, 267385, 347096, 427816, 433870, 534770, 867740, 1069540, 1735480, 2139080, 2299511, 4599022, 9198044, 11497555, 18396088, 22995110, 45990220, 91980440]

約数ペア:

[(1, 91980440), (2, 45990220), (4, 22995110), (5, 18396088), (8, 11497555), (10, 9198044), (20, 4599022), (40, 2299511), (43, 2139080), (53, 1735480), (86, 1069540), (106, 867740), (172, 534770), (212, 433870), (215, 427816), (265, 347096), (344, 267385), (424, 216935), (430, 213908), (530, 173548), (860, 106954), (1009, 91160), (1060, 86774), (1720, 53477), (2018, 45580), (2120, 43387), (2279, 40360), (4036, 22790), (4558, 20180), (5045, 18232), (8072, 11395), (9116, 10090)]