18801620

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{9127}}^1$

素因数の和:9239

約数の個数: 24

約数和(自身を含む): 39871104

約数和(自身を除く): 21069484

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 9127, 18254, 36508, 45635, 91270, 182540, 940081, 1880162, 3760324, 4700405, 9400810, 18801620]

約数ペア:

[(1, 18801620), (2, 9400810), (4, 4700405), (5, 3760324), (10, 1880162), (20, 940081), (103, 182540), (206, 91270), (412, 45635), (515, 36508), (1030, 18254), (2060, 9127)]