51781262

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{239}}^1\times {\mathrm{641}}^1$

素因数の和:908

約数の個数: 24

約数和(自身を含む): 84589920

約数和(自身を除く): 32808658

約数列:

[1, 2, 13, 26, 169, 239, 338, 478, 641, 1282, 3107, 6214, 8333, 16666, 40391, 80782, 108329, 153199, 216658, 306398, 1991587, 3983174, 25890631, 51781262]

約数ペア:

[(1, 51781262), (2, 25890631), (13, 3983174), (26, 1991587), (169, 306398), (239, 216658), (338, 153199), (478, 108329), (641, 80782), (1282, 40391), (3107, 16666), (6214, 8333)]