18386120

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4217}}^1$

素因数の和:4337

約数の個数: 32

約数和(自身を含む): 41758200

約数和(自身を除く): 23372080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4217, 4360, 8434, 16868, 21085, 33736, 42170, 84340, 168680, 459653, 919306, 1838612, 2298265, 3677224, 4596530, 9193060, 18386120]

約数ペア:

[(1, 18386120), (2, 9193060), (4, 4596530), (5, 3677224), (8, 2298265), (10, 1838612), (20, 919306), (40, 459653), (109, 168680), (218, 84340), (436, 42170), (545, 33736), (872, 21085), (1090, 16868), (2180, 8434), (4217, 4360)]