389601620

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{189127}}^1$

素因数の和:189239

約数の個数: 24

約数和(自身を含む): 826111104

約数和(自身を除く): 436509484

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 189127, 378254, 756508, 945635, 1891270, 3782540, 19480081, 38960162, 77920324, 97400405, 194800810, 389601620]

約数ペア:

[(1, 389601620), (2, 194800810), (4, 97400405), (5, 77920324), (10, 38960162), (20, 19480081), (103, 3782540), (206, 1891270), (412, 945635), (515, 756508), (1030, 378254), (2060, 189127)]