201409820

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{32381}}^1$

素因数の和:32701

約数の個数: 24

約数和(自身を含む): 424333728

約数和(自身を除く): 222923908

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1555, 3110, 6220, 32381, 64762, 129524, 161905, 323810, 647620, 10070491, 20140982, 40281964, 50352455, 100704910, 201409820]

約数ペア:

[(1, 201409820), (2, 100704910), (4, 50352455), (5, 40281964), (10, 20140982), (20, 10070491), (311, 647620), (622, 323810), (1244, 161905), (1555, 129524), (3110, 64762), (6220, 32381)]