20420212

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1933}}^1$

素因数の和:2095

約数の個数: 24

約数和(自身を含む): 37906400

約数和(自身を除く): 17486188

約数列:

[1, 2, 4, 19, 38, 76, 139, 278, 556, 1933, 2641, 3866, 5282, 7732, 10564, 36727, 73454, 146908, 268687, 537374, 1074748, 5105053, 10210106, 20420212]

約数ペア:

[(1, 20420212), (2, 10210106), (4, 5105053), (19, 1074748), (38, 537374), (76, 268687), (139, 146908), (278, 73454), (556, 36727), (1933, 10564), (2641, 7732), (3866, 5282)]