18726032

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{457}}^1$

素因数の和:675

約数の個数: 40

約数和(自身を含む): 39356856

約数和(自身を除く): 20630824

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 197, 208, 394, 457, 788, 914, 1576, 1828, 2561, 3152, 3656, 5122, 5941, 7312, 10244, 11882, 20488, 23764, 40976, 47528, 90029, 95056, 180058, 360116, 720232, 1170377, 1440464, 2340754, 4681508, 9363016, 18726032]

約数ペア:

[(1, 18726032), (2, 9363016), (4, 4681508), (8, 2340754), (13, 1440464), (16, 1170377), (26, 720232), (52, 360116), (104, 180058), (197, 95056), (208, 90029), (394, 47528), (457, 40976), (788, 23764), (914, 20488), (1576, 11882), (1828, 10244), (2561, 7312), (3152, 5941), (3656, 5122)]