18815035

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 25344000

約数和(自身を除く): 6528965

約数列:

[1, 5, 19, 23, 79, 95, 109, 115, 395, 437, 545, 1501, 1817, 2071, 2185, 2507, 7505, 8611, 9085, 10355, 12535, 34523, 43055, 47633, 163609, 172615, 198053, 238165, 818045, 990265, 3763007, 18815035]

約数ペア:

[(1, 18815035), (5, 3763007), (19, 990265), (23, 818045), (79, 238165), (95, 198053), (109, 172615), (115, 163609), (395, 47633), (437, 43055), (545, 34523), (1501, 12535), (1817, 10355), (2071, 9085), (2185, 8611), (2507, 7505)]