20813660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{148669}}^1$

素因数の和:148685

約数の個数: 24

約数和(自身を含む): 49953120

約数和(自身を除く): 29139460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 148669, 297338, 594676, 743345, 1040683, 1486690, 2081366, 2973380, 4162732, 5203415, 10406830, 20813660]

約数ペア:

[(1, 20813660), (2, 10406830), (4, 5203415), (5, 4162732), (7, 2973380), (10, 2081366), (14, 1486690), (20, 1040683), (28, 743345), (35, 594676), (70, 297338), (140, 148669)]