18316360

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4201}}^1$

素因数の和:4321

約数の個数: 32

約数和(自身を含む): 41599800

約数和(自身を除く): 23283440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4201, 4360, 8402, 16804, 21005, 33608, 42010, 84020, 168040, 457909, 915818, 1831636, 2289545, 3663272, 4579090, 9158180, 18316360]

約数ペア:

[(1, 18316360), (2, 9158180), (4, 4579090), (5, 3663272), (8, 2289545), (10, 1831636), (20, 915818), (40, 457909), (109, 168040), (218, 84020), (436, 42010), (545, 33608), (872, 21005), (1090, 16804), (2180, 8402), (4201, 4360)]