720697679

素因数分解:

${\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1\times {\mathrm{3089}}^1$

素因数の和:3370

約数の個数: 16

約数和(自身を含む): 788024160

約数和(自身を除く): 67326481

約数列:

[1, 13, 131, 137, 1703, 1781, 3089, 17947, 40157, 233311, 404659, 423193, 5260567, 5501509, 55438283, 720697679]

約数ペア:

[(1, 720697679), (13, 55438283), (131, 5501509), (137, 5260567), (1703, 423193), (1781, 404659), (3089, 233311), (17947, 40157)]