129842140

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{41351}}^1$

素因数の和:41517

約数の個数: 24

約数和(自身を含む): 274411872

約数和(自身を除く): 144569732

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 41351, 82702, 165404, 206755, 413510, 827020, 6492107, 12984214, 25968428, 32460535, 64921070, 129842140]

約数ペア:

[(1, 129842140), (2, 64921070), (4, 32460535), (5, 25968428), (10, 12984214), (20, 6492107), (157, 827020), (314, 413510), (628, 206755), (785, 165404), (1570, 82702), (3140, 41351)]