81820228

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{67957}}^1$

素因数の和:68011

約数の個数: 24

約数和(自身を含む): 167448512

約数和(自身を除く): 85628284

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 67957, 135914, 271828, 475699, 951398, 1902796, 2922151, 5844302, 11688604, 20455057, 40910114, 81820228]

約数ペア:

[(1, 81820228), (2, 40910114), (4, 20455057), (7, 11688604), (14, 5844302), (28, 2922151), (43, 1902796), (86, 951398), (172, 475699), (301, 271828), (602, 135914), (1204, 67957)]