20177525768

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{81360991}}^1$

素因数の和:81361028

約数の個数: 16

約数和(自身を含む): 39053276160

約数和(自身を除く): 18875750392

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 81360991, 162721982, 325443964, 650887928, 2522190721, 5044381442, 10088762884, 20177525768]

約数ペア:

[(1, 20177525768), (2, 10088762884), (4, 5044381442), (8, 2522190721), (31, 650887928), (62, 325443964), (124, 162721982), (248, 81360991)]