320780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{373}}^1$

素因数の和:425

約数の個数: 24

約数和(自身を含む): 691152

約数和(自身を除く): 370372

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 373, 430, 746, 860, 1492, 1865, 3730, 7460, 16039, 32078, 64156, 80195, 160390, 320780]

約数ペア:

[(1, 320780), (2, 160390), (4, 80195), (5, 64156), (10, 32078), (20, 16039), (43, 7460), (86, 3730), (172, 1865), (215, 1492), (373, 860), (430, 746)]