18116420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{129403}}^1$

素因数の和:129419

約数の個数: 24

約数和(自身を含む): 43479744

約数和(自身を除く): 25363324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 129403, 258806, 517612, 647015, 905821, 1294030, 1811642, 2588060, 3623284, 4529105, 9058210, 18116420]

約数ペア:

[(1, 18116420), (2, 9058210), (4, 4529105), (5, 3623284), (7, 2588060), (10, 1811642), (14, 1294030), (20, 905821), (28, 647015), (35, 517612), (70, 258806), (140, 129403)]