20180008

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{81371}}^1$

素因数の和:81408

約数の個数: 16

約数和(自身を含む): 39058560

約数和(自身を除く): 18878552

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 81371, 162742, 325484, 650968, 2522501, 5045002, 10090004, 20180008]

約数ペア:

[(1, 20180008), (2, 10090004), (4, 5045002), (8, 2522501), (31, 650968), (62, 325484), (124, 162742), (248, 81371)]