18487340

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{5107}}^1$

素因数の和:5297

約数の個数: 24

約数和(自身を含む): 39045552

約数和(自身を除く): 20558212

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 5107, 10214, 20428, 25535, 51070, 102140, 924367, 1848734, 3697468, 4621835, 9243670, 18487340]

約数ペア:

[(1, 18487340), (2, 9243670), (4, 4621835), (5, 3697468), (10, 1848734), (20, 924367), (181, 102140), (362, 51070), (724, 25535), (905, 20428), (1810, 10214), (3620, 5107)]