20564740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{146891}}^1$

素因数の和:146907

約数の個数: 24

約数和(自身を含む): 49355712

約数和(自身を除く): 28790972

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 146891, 293782, 587564, 734455, 1028237, 1468910, 2056474, 2937820, 4112948, 5141185, 10282370, 20564740]

約数ペア:

[(1, 20564740), (2, 10282370), (4, 5141185), (5, 4112948), (7, 2937820), (10, 2056474), (14, 1468910), (20, 1028237), (28, 734455), (35, 587564), (70, 293782), (140, 146891)]