178441902020

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{8221}}^1\times {\mathrm{20477}}^1$

素因数の和:28760

約数の個数: 48

約数和(自身を含む): 381863423088

約数和(自身を除く): 203421521068

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 8221, 16442, 20477, 32884, 40954, 41105, 81908, 82210, 102385, 164420, 204770, 409540, 435713, 871426, 1085281, 1742852, 2170562, 2178565, 4341124, 4357130, 5426405, 8714260, 10852810, 21705620, 168341417, 336682834, 673365668, 841707085, 1683414170, 3366828340, 8922095101, 17844190202, 35688380404, 44610475505, 89220951010, 178441902020]

約数ペア:

[(1, 178441902020), (2, 89220951010), (4, 44610475505), (5, 35688380404), (10, 17844190202), (20, 8922095101), (53, 3366828340), (106, 1683414170), (212, 841707085), (265, 673365668), (530, 336682834), (1060, 168341417), (8221, 21705620), (16442, 10852810), (20477, 8714260), (32884, 5426405), (40954, 4357130), (41105, 4341124), (81908, 2178565), (82210, 2170562), (102385, 1742852), (164420, 1085281), (204770, 871426), (409540, 435713)]