65385020

素因数分解:

$2^2\times 5^1\times {\mathrm{1571}}^1\times {\mathrm{2081}}^1$

素因数の和:3661

約数の個数: 24

約数和(自身を含む): 137461968

約数和(自身を除く): 72076948

約数列:

[1, 2, 4, 5, 10, 20, 1571, 2081, 3142, 4162, 6284, 7855, 8324, 10405, 15710, 20810, 31420, 41620, 3269251, 6538502, 13077004, 16346255, 32692510, 65385020]

約数ペア:

[(1, 65385020), (2, 32692510), (4, 16346255), (5, 13077004), (10, 6538502), (20, 3269251), (1571, 41620), (2081, 31420), (3142, 20810), (4162, 15710), (6284, 10405), (7855, 8324)]