19890716

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{160409}}^1$

素因数の和:160444

約数の個数: 12

約数和(自身を含む): 35931840

約数和(自身を除く): 16041124

約数列:

[1, 2, 4, 31, 62, 124, 160409, 320818, 641636, 4972679, 9945358, 19890716]

約数ペア:

[(1, 19890716), (2, 9945358), (4, 4972679), (31, 641636), (62, 320818), (124, 160409)]