42108020

素因数分解:

$2^2\times 5^1\times {\mathrm{1451}}^2$

素因数の和:2911

約数の個数: 18

約数和(自身を含む): 88487826

約数和(自身を除く): 46379806

約数列:

[1, 2, 4, 5, 10, 20, 1451, 2902, 5804, 7255, 14510, 29020, 2105401, 4210802, 8421604, 10527005, 21054010, 42108020]

約数ペア:

[(1, 42108020), (2, 21054010), (4, 10527005), (5, 8421604), (10, 4210802), (20, 2105401), (1451, 29020), (2902, 14510), (5804, 7255)]