247908020

素因数分解:

$2^2\times 5^1\times {\mathrm{2221}}^1\times {\mathrm{5581}}^1$

素因数の和:7811

約数の個数: 24

約数和(自身を含む): 520934568

約数和(自身を除く): 273026548

約数列:

[1, 2, 4, 5, 10, 20, 2221, 4442, 5581, 8884, 11105, 11162, 22210, 22324, 27905, 44420, 55810, 111620, 12395401, 24790802, 49581604, 61977005, 123954010, 247908020]

約数ペア:

[(1, 247908020), (2, 123954010), (4, 61977005), (5, 49581604), (10, 24790802), (20, 12395401), (2221, 111620), (4442, 55810), (5581, 44420), (8884, 27905), (11105, 22324), (11162, 22210)]