20675090

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{26171}}^1$

素因数の和:26257

約数の個数: 16

約数和(自身を含む): 37687680

約数和(自身を除く): 17012590

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 26171, 52342, 130855, 261710, 2067509, 4135018, 10337545, 20675090]

約数ペア:

[(1, 20675090), (2, 10337545), (5, 4135018), (10, 2067509), (79, 261710), (158, 130855), (395, 52342), (790, 26171)]