20955670

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2081}}^1$

素因数の和:2160

約数の個数: 32

約数和(自身を含む): 40474080

約数和(自身を除く): 19518410

約数列:

[1, 2, 5, 10, 19, 38, 53, 95, 106, 190, 265, 530, 1007, 2014, 2081, 4162, 5035, 10070, 10405, 20810, 39539, 79078, 110293, 197695, 220586, 395390, 551465, 1102930, 2095567, 4191134, 10477835, 20955670]

約数ペア:

[(1, 20955670), (2, 10477835), (5, 4191134), (10, 2095567), (19, 1102930), (38, 551465), (53, 395390), (95, 220586), (106, 197695), (190, 110293), (265, 79078), (530, 39539), (1007, 20810), (2014, 10405), (2081, 10070), (4162, 5035)]