81936020

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{141269}}^1$

素因数の和:141307

約数の個数: 24

約数和(自身を含む): 178000200

約数和(自身を除く): 96064180

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 141269, 282538, 565076, 706345, 1412690, 2825380, 4096801, 8193602, 16387204, 20484005, 40968010, 81936020]

約数ペア:

[(1, 81936020), (2, 40968010), (4, 20484005), (5, 16387204), (10, 8193602), (20, 4096801), (29, 2825380), (58, 1412690), (116, 706345), (145, 565076), (290, 282538), (580, 141269)]