31106660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{661}}^1$

素因数の和:864

約数の個数: 48

約数和(自身を含む): 70844592

約数和(自身を除く): 39737932

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 181, 260, 362, 661, 724, 905, 1322, 1810, 2353, 2644, 3305, 3620, 4706, 6610, 8593, 9412, 11765, 13220, 17186, 23530, 34372, 42965, 47060, 85930, 119641, 171860, 239282, 478564, 598205, 1196410, 1555333, 2392820, 3110666, 6221332, 7776665, 15553330, 31106660]

約数ペア:

[(1, 31106660), (2, 15553330), (4, 7776665), (5, 6221332), (10, 3110666), (13, 2392820), (20, 1555333), (26, 1196410), (52, 598205), (65, 478564), (130, 239282), (181, 171860), (260, 119641), (362, 85930), (661, 47060), (724, 42965), (905, 34372), (1322, 23530), (1810, 17186), (2353, 13220), (2644, 11765), (3305, 9412), (3620, 8593), (4706, 6610)]