640023553

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{643}}^1\times {\mathrm{3329}}^1$

素因数の和:4008

約数の個数: 16

約数和(自身を含む): 720558720

約数和(自身を除く): 80535167

約数列:

[1, 13, 23, 299, 643, 3329, 8359, 14789, 43277, 76567, 192257, 995371, 2140547, 27827111, 49232581, 640023553]

約数ペア:

[(1, 640023553), (13, 49232581), (23, 27827111), (299, 2140547), (643, 995371), (3329, 192257), (8359, 76567), (14789, 43277)]