20173856885

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{22541}}^1$

素因数の和:22854

約数の個数: 48

約数和(自身を含む): 30436569072

約数和(自身を除く): 10262712187

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 281, 455, 637, 1405, 1967, 3185, 3653, 9835, 13769, 18265, 22541, 25571, 68845, 112705, 127855, 157787, 178997, 293033, 788935, 894985, 1104509, 1465165, 2051231, 5522545, 6334021, 10256155, 14358617, 31670105, 44338147, 71793085, 82342273, 221690735, 310367029, 411711365, 576395911, 1551835145, 2881979555, 4034771377, 20173856885]

約数ペア:

[(1, 20173856885), (5, 4034771377), (7, 2881979555), (13, 1551835145), (35, 576395911), (49, 411711365), (65, 310367029), (91, 221690735), (245, 82342273), (281, 71793085), (455, 44338147), (637, 31670105), (1405, 14358617), (1967, 10256155), (3185, 6334021), (3653, 5522545), (9835, 2051231), (13769, 1465165), (18265, 1104509), (22541, 894985), (25571, 788935), (68845, 293033), (112705, 178997), (127855, 157787)]