20161993690

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2221}}^1\times {\mathrm{11491}}^1$

素因数の和:13798

約数の個数: 32

約数和(自身を含む): 36770722560

約数和(自身を除く): 16608728870

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 2221, 4442, 11105, 11491, 22210, 22982, 57455, 114910, 175459, 350918, 877295, 907789, 1754590, 1815578, 4538945, 9077890, 25521511, 51043022, 127607555, 255215110, 2016199369, 4032398738, 10080996845, 20161993690]

約数ペア:

[(1, 20161993690), (2, 10080996845), (5, 4032398738), (10, 2016199369), (79, 255215110), (158, 127607555), (395, 51043022), (790, 25521511), (2221, 9077890), (4442, 4538945), (11105, 1815578), (11491, 1754590), (22210, 907789), (22982, 877295), (57455, 350918), (114910, 175459)]