18498160

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{2161}}^1$

素因数の和:2281

約数の個数: 40

約数和(自身を含む): 43430256

約数和(自身を除く): 24932096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1712, 2140, 2161, 4280, 4322, 8560, 8644, 10805, 17288, 21610, 34576, 43220, 86440, 172880, 231227, 462454, 924908, 1156135, 1849816, 2312270, 3699632, 4624540, 9249080, 18498160]

約数ペア:

[(1, 18498160), (2, 9249080), (4, 4624540), (5, 3699632), (8, 2312270), (10, 1849816), (16, 1156135), (20, 924908), (40, 462454), (80, 231227), (107, 172880), (214, 86440), (428, 43220), (535, 34576), (856, 21610), (1070, 17288), (1712, 10805), (2140, 8644), (2161, 8560), (4280, 4322)]