81038516

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{19727}}^1$

素因数の和:19823

約数の個数: 24

約数和(自身を含む): 154667520

約数和(自身を除く): 73629004

約数列:

[1, 2, 4, 13, 26, 52, 79, 158, 316, 1027, 2054, 4108, 19727, 39454, 78908, 256451, 512902, 1025804, 1558433, 3116866, 6233732, 20259629, 40519258, 81038516]

約数ペア:

[(1, 81038516), (2, 40519258), (4, 20259629), (13, 6233732), (26, 3116866), (52, 1558433), (79, 1025804), (158, 512902), (316, 256451), (1027, 78908), (2054, 39454), (4108, 19727)]