68639180

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79813}}^1$

素因数の和:79865

約数の個数: 24

約数和(自身を含む): 147496272

約数和(自身を除く): 78857092

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 79813, 159626, 319252, 399065, 798130, 1596260, 3431959, 6863918, 13727836, 17159795, 34319590, 68639180]

約数ペア:

[(1, 68639180), (2, 34319590), (4, 17159795), (5, 13727836), (10, 6863918), (20, 3431959), (43, 1596260), (86, 798130), (172, 399065), (215, 319252), (430, 159626), (860, 79813)]