990804315

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{479}}^1\times {\mathrm{3727}}^1$

素因数の和:4251

約数の個数: 32

約数和(自身を含む): 1631969280

約数和(自身を除く): 641164965

約数列:

[1, 3, 5, 15, 37, 111, 185, 479, 555, 1437, 2395, 3727, 7185, 11181, 17723, 18635, 53169, 55905, 88615, 137899, 265845, 413697, 689495, 1785233, 2068485, 5355699, 8926165, 26778495, 66053621, 198160863, 330268105, 990804315]

約数ペア:

[(1, 990804315), (3, 330268105), (5, 198160863), (15, 66053621), (37, 26778495), (111, 8926165), (185, 5355699), (479, 2068485), (555, 1785233), (1437, 689495), (2395, 413697), (3727, 265845), (7185, 137899), (11181, 88615), (17723, 55905), (18635, 53169)]