19082540

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{22189}}^1$

素因数の和:22241

約数の個数: 24

約数和(自身を含む): 41007120

約数和(自身を除く): 21924580

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 22189, 44378, 88756, 110945, 221890, 443780, 954127, 1908254, 3816508, 4770635, 9541270, 19082540]

約数ペア:

[(1, 19082540), (2, 9541270), (4, 4770635), (5, 3816508), (10, 1908254), (20, 954127), (43, 443780), (86, 221890), (172, 110945), (215, 88756), (430, 44378), (860, 22189)]