20181901828

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1669}}^1\times {\mathrm{6703}}^1$

素因数の和:8428

約数の個数: 48

約数和(自身を含む): 39498359040

約数和(自身を除く): 19316457212

約数列:

[1, 2, 4, 11, 22, 41, 44, 82, 164, 451, 902, 1669, 1804, 3338, 6676, 6703, 13406, 18359, 26812, 36718, 68429, 73436, 73733, 136858, 147466, 273716, 274823, 294932, 549646, 752719, 1099292, 1505438, 3010876, 3023053, 6046106, 11187307, 12092212, 22374614, 44749228, 123060377, 246120754, 458679587, 492241508, 917359174, 1834718348, 5045475457, 10090950914, 20181901828]

約数ペア:

[(1, 20181901828), (2, 10090950914), (4, 5045475457), (11, 1834718348), (22, 917359174), (41, 492241508), (44, 458679587), (82, 246120754), (164, 123060377), (451, 44749228), (902, 22374614), (1669, 12092212), (1804, 11187307), (3338, 6046106), (6676, 3023053), (6703, 3010876), (13406, 1505438), (18359, 1099292), (26812, 752719), (36718, 549646), (68429, 294932), (73436, 274823), (73733, 273716), (136858, 147466)]