18018020

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{5527}}^1$

素因数の和:5699

約数の個数: 24

約数和(自身を含む): 38076864

約数和(自身を除く): 20058844

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 5527, 11054, 22108, 27635, 55270, 110540, 900901, 1801802, 3603604, 4504505, 9009010, 18018020]

約数ペア:

[(1, 18018020), (2, 9009010), (4, 4504505), (5, 3603604), (10, 1801802), (20, 900901), (163, 110540), (326, 55270), (652, 27635), (815, 22108), (1630, 11054), (3260, 5527)]