51943280

素因数分解:

$2^4\times 5^1\times {\mathrm{649291}}^1$

素因数の和:649304

約数の個数: 20

約数和(自身を含む): 120768312

約数和(自身を除く): 68825032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 649291, 1298582, 2597164, 3246455, 5194328, 6492910, 10388656, 12985820, 25971640, 51943280]

約数ペア:

[(1, 51943280), (2, 25971640), (4, 12985820), (5, 10388656), (8, 6492910), (10, 5194328), (16, 3246455), (20, 2597164), (40, 1298582), (80, 649291)]