141569180

素因数分解:

$2^2\times 5^1\times {\mathrm{1999}}^1\times {\mathrm{3541}}^1$

素因数の和:5549

約数の個数: 24

約数和(自身を含む): 297528000

約数和(自身を除く): 155958820

約数列:

[1, 2, 4, 5, 10, 20, 1999, 3541, 3998, 7082, 7996, 9995, 14164, 17705, 19990, 35410, 39980, 70820, 7078459, 14156918, 28313836, 35392295, 70784590, 141569180]

約数ペア:

[(1, 141569180), (2, 70784590), (4, 35392295), (5, 28313836), (10, 14156918), (20, 7078459), (1999, 70820), (3541, 39980), (3998, 35410), (7082, 19990), (7996, 17705), (9995, 14164)]