18084280

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11027}}^1$

素因数の和:11079

約数の個数: 32

約数和(自身を含む): 41685840

約数和(自身を除く): 23601560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 11027, 22054, 44108, 55135, 88216, 110270, 220540, 441080, 452107, 904214, 1808428, 2260535, 3616856, 4521070, 9042140, 18084280]

約数ペア:

[(1, 18084280), (2, 9042140), (4, 4521070), (5, 3616856), (8, 2260535), (10, 1808428), (20, 904214), (40, 452107), (41, 441080), (82, 220540), (164, 110270), (205, 88216), (328, 55135), (410, 44108), (820, 22054), (1640, 11027)]