81785288

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{3727}}^1$

素因数の和:3957

約数の個数: 32

約数和(自身を含む): 165970560

約数和(自身を除く): 84185272

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 211, 422, 844, 1688, 2743, 3727, 5486, 7454, 10972, 14908, 21944, 29816, 48451, 96902, 193804, 387608, 786397, 1572794, 3145588, 6291176, 10223161, 20446322, 40892644, 81785288]

約数ペア:

[(1, 81785288), (2, 40892644), (4, 20446322), (8, 10223161), (13, 6291176), (26, 3145588), (52, 1572794), (104, 786397), (211, 387608), (422, 193804), (844, 96902), (1688, 48451), (2743, 29816), (3727, 21944), (5486, 14908), (7454, 10972)]