81626728

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{237287}}^1$

素因数の和:237336

約数の個数: 16

約数和(自身を含む): 156610080

約数和(自身を除く): 74983352

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 237287, 474574, 949148, 1898296, 10203341, 20406682, 40813364, 81626728]

約数ペア:

[(1, 81626728), (2, 40813364), (4, 20406682), (8, 10203341), (43, 1898296), (86, 949148), (172, 474574), (344, 237287)]