20172560

素因数分解:

$2^4\times 5^1\times {\mathrm{252157}}^1$

素因数の和:252170

約数の個数: 20

約数和(自身を含む): 46901388

約数和(自身を除く): 26728828

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252157, 504314, 1008628, 1260785, 2017256, 2521570, 4034512, 5043140, 10086280, 20172560]

約数ペア:

[(1, 20172560), (2, 10086280), (4, 5043140), (5, 4034512), (8, 2521570), (10, 2017256), (16, 1260785), (20, 1008628), (40, 504314), (80, 252157)]