20129402878

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{12037}}^1\times {\mathrm{64319}}^1$

素因数の和:76371

約数の個数: 16

約数和(自身を含む): 32519934720

約数和(自身を除く): 12390531842

約数列:

[1, 2, 13, 26, 12037, 24074, 64319, 128638, 156481, 312962, 836147, 1672294, 774207803, 1548415606, 10064701439, 20129402878]

約数ペア:

[(1, 20129402878), (2, 10064701439), (13, 1548415606), (26, 774207803), (12037, 1672294), (24074, 836147), (64319, 312962), (128638, 156481)]