20168620

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^2\times {\mathrm{359}}^1$

素因数の和:474

約数の個数: 36

約数和(自身を含む): 43288560

約数和(自身を除く): 23119940

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 359, 530, 718, 1060, 1436, 1795, 2809, 3590, 5618, 7180, 11236, 14045, 19027, 28090, 38054, 56180, 76108, 95135, 190270, 380540, 1008431, 2016862, 4033724, 5042155, 10084310, 20168620]

約数ペア:

[(1, 20168620), (2, 10084310), (4, 5042155), (5, 4033724), (10, 2016862), (20, 1008431), (53, 380540), (106, 190270), (212, 95135), (265, 76108), (359, 56180), (530, 38054), (718, 28090), (1060, 19027), (1436, 14045), (1795, 11236), (2809, 7180), (3590, 5618)]