20346860

素因数分解:

$2^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{2089}}^1$

素因数の和:2585

約数の個数: 24

約数和(自身を含む): 42836640

約数和(自身を除く): 22489780

約数列:

[1, 2, 4, 5, 10, 20, 487, 974, 1948, 2089, 2435, 4178, 4870, 8356, 9740, 10445, 20890, 41780, 1017343, 2034686, 4069372, 5086715, 10173430, 20346860]

約数ペア:

[(1, 20346860), (2, 10173430), (4, 5086715), (5, 4069372), (10, 2034686), (20, 1017343), (487, 41780), (974, 20890), (1948, 10445), (2089, 9740), (2435, 8356), (4178, 4870)]