81890716

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{660409}}^1$

素因数の和:660444

約数の個数: 12

約数和(自身を含む): 147931840

約数和(自身を除く): 66041124

約数列:

[1, 2, 4, 31, 62, 124, 660409, 1320818, 2641636, 20472679, 40945358, 81890716]

約数ペア:

[(1, 81890716), (2, 40945358), (4, 20472679), (31, 2641636), (62, 1320818), (124, 660409)]