81313688

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{236377}}^1$

素因数の和:236426

約数の個数: 16

約数和(自身を含む): 156009480

約数和(自身を除く): 74695792

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 236377, 472754, 945508, 1891016, 10164211, 20328422, 40656844, 81313688]

約数ペア:

[(1, 81313688), (2, 40656844), (4, 20328422), (8, 10164211), (43, 1891016), (86, 945508), (172, 472754), (344, 236377)]