133940

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:227

約数の個数: 24

約数和(自身を含む): 290472

約数和(自身を除く): 156532

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 181, 185, 362, 370, 724, 740, 905, 1810, 3620, 6697, 13394, 26788, 33485, 66970, 133940]

約数ペア:

[(1, 133940), (2, 66970), (4, 33485), (5, 26788), (10, 13394), (20, 6697), (37, 3620), (74, 1810), (148, 905), (181, 740), (185, 724), (362, 370)]