81274040

素因数分解:

$2^3\times 5^1\times {\mathrm{2031851}}^1$

素因数の和:2031862

約数の個数: 16

約数和(自身を含む): 182866680

約数和(自身を除く): 101592640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2031851, 4063702, 8127404, 10159255, 16254808, 20318510, 40637020, 81274040]

約数ペア:

[(1, 81274040), (2, 40637020), (4, 20318510), (5, 16254808), (8, 10159255), (10, 8127404), (20, 4063702), (40, 2031851)]