20565578008

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{59783657}}^1$

素因数の和:59783706

約数の個数: 16

約数和(自身を含む): 39457214280

約数和(自身を除く): 18891636272

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 59783657, 119567314, 239134628, 478269256, 2570697251, 5141394502, 10282789004, 20565578008]

約数ペア:

[(1, 20565578008), (2, 10282789004), (4, 5141394502), (8, 2570697251), (43, 478269256), (86, 239134628), (172, 119567314), (344, 59783657)]