2217940

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2579}}^1$

素因数の和:2631

約数の個数: 24

約数和(自身を含む): 4767840

約数和(自身を除く): 2549900

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 2579, 5158, 10316, 12895, 25790, 51580, 110897, 221794, 443588, 554485, 1108970, 2217940]

約数ペア:

[(1, 2217940), (2, 1108970), (4, 554485), (5, 443588), (10, 221794), (20, 110897), (43, 51580), (86, 25790), (172, 12895), (215, 10316), (430, 5158), (860, 2579)]