18804937820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{487933}}^1$

素因数の和:488030

約数の個数: 48

約数和(自身を含む): 41314347648

約数和(自身を除く): 22509409828

約数列:

[1, 2, 4, 5, 10, 20, 41, 47, 82, 94, 164, 188, 205, 235, 410, 470, 820, 940, 1927, 3854, 7708, 9635, 19270, 38540, 487933, 975866, 1951732, 2439665, 4879330, 9758660, 20005253, 22932851, 40010506, 45865702, 80021012, 91731404, 100026265, 114664255, 200052530, 229328510, 400105060, 458657020, 940246891, 1880493782, 3760987564, 4701234455, 9402468910, 18804937820]

約数ペア:

[(1, 18804937820), (2, 9402468910), (4, 4701234455), (5, 3760987564), (10, 1880493782), (20, 940246891), (41, 458657020), (47, 400105060), (82, 229328510), (94, 200052530), (164, 114664255), (188, 100026265), (205, 91731404), (235, 80021012), (410, 45865702), (470, 40010506), (820, 22932851), (940, 20005253), (1927, 9758660), (3854, 4879330), (7708, 2439665), (9635, 1951732), (19270, 975866), (38540, 487933)]