328458380

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{400559}}^1$

素因数の和:400609

約数の個数: 24

約数和(自身を含む): 706587840

約数和(自身を除く): 378129460

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 400559, 801118, 1602236, 2002795, 4005590, 8011180, 16422919, 32845838, 65691676, 82114595, 164229190, 328458380]

約数ペア:

[(1, 328458380), (2, 164229190), (4, 82114595), (5, 65691676), (10, 32845838), (20, 16422919), (41, 8011180), (82, 4005590), (164, 2002795), (205, 1602236), (410, 801118), (820, 400559)]