31157980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{222557}}^1$

素因数の和:222573

約数の個数: 24

約数和(自身を含む): 74779488

約数和(自身を除く): 43621508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 222557, 445114, 890228, 1112785, 1557899, 2225570, 3115798, 4451140, 6231596, 7789495, 15578990, 31157980]

約数ペア:

[(1, 31157980), (2, 15578990), (4, 7789495), (5, 6231596), (7, 4451140), (10, 3115798), (14, 2225570), (20, 1557899), (28, 1112785), (35, 890228), (70, 445114), (140, 222557)]