81865544

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{330103}}^1$

素因数の和:330140

約数の個数: 16

約数和(自身を含む): 158449920

約数和(自身を除く): 76584376

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 330103, 660206, 1320412, 2640824, 10233193, 20466386, 40932772, 81865544]

約数ペア:

[(1, 81865544), (2, 40932772), (4, 20466386), (8, 10233193), (31, 2640824), (62, 1320412), (124, 660206), (248, 330103)]