20131709980

素因数分解:

$2^2\times 5^1\times {\mathrm{1559}}^1\times {\mathrm{645661}}^1$

素因数の和:647229

約数の個数: 24

約数和(自身を含む): 42303774240

約数和(自身を除く): 22172064260

約数列:

[1, 2, 4, 5, 10, 20, 1559, 3118, 6236, 7795, 15590, 31180, 645661, 1291322, 2582644, 3228305, 6456610, 12913220, 1006585499, 2013170998, 4026341996, 5032927495, 10065854990, 20131709980]

約数ペア:

[(1, 20131709980), (2, 10065854990), (4, 5032927495), (5, 4026341996), (10, 2013170998), (20, 1006585499), (1559, 12913220), (3118, 6456610), (6236, 3228305), (7795, 2582644), (15590, 1291322), (31180, 645661)]