129989665

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{2081}}^1$

素因数の和:2161

約数の個数: 24

約数和(自身を含む): 173663784

約数和(自身を除く): 43674119

約数列:

[1, 5, 13, 31, 65, 155, 403, 961, 2015, 2081, 4805, 10405, 12493, 27053, 62465, 64511, 135265, 322555, 838643, 1999841, 4193215, 9999205, 25997933, 129989665]

約数ペア:

[(1, 129989665), (5, 25997933), (13, 9999205), (31, 4193215), (65, 1999841), (155, 838643), (403, 322555), (961, 135265), (2015, 64511), (2081, 62465), (4805, 27053), (10405, 12493)]