397050760

素因数分解:

$2^3\times 5^1\times {\mathrm{9926269}}^1$

素因数の和:9926280

約数の個数: 16

約数和(自身を含む): 893364300

約数和(自身を除く): 496313540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9926269, 19852538, 39705076, 49631345, 79410152, 99262690, 198525380, 397050760]

約数ペア:

[(1, 397050760), (2, 198525380), (4, 99262690), (5, 79410152), (8, 49631345), (10, 39705076), (20, 19852538), (40, 9926269)]