20027440

素因数分解:

$2^4\times 5^1\times {\mathrm{250343}}^1$

素因数の和:250356

約数の個数: 20

約数和(自身を含む): 46563984

約数和(自身を除く): 26536544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 250343, 500686, 1001372, 1251715, 2002744, 2503430, 4005488, 5006860, 10013720, 20027440]

約数ペア:

[(1, 20027440), (2, 10013720), (4, 5006860), (5, 4005488), (8, 2503430), (10, 2002744), (16, 1251715), (20, 1001372), (40, 500686), (80, 250343)]