205632020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{21737}}^1$

素因数の和:21800

約数の個数: 48

約数和(自身を含む): 482061888

約数和(自身を除く): 276429868

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 4730, 9460, 21737, 43474, 86948, 108685, 217370, 239107, 434740, 478214, 934691, 956428, 1195535, 1869382, 2391070, 3738764, 4673455, 4782140, 9346910, 10281601, 18693820, 20563202, 41126404, 51408005, 102816010, 205632020]

約数ペア:

[(1, 205632020), (2, 102816010), (4, 51408005), (5, 41126404), (10, 20563202), (11, 18693820), (20, 10281601), (22, 9346910), (43, 4782140), (44, 4673455), (55, 3738764), (86, 2391070), (110, 1869382), (172, 1195535), (215, 956428), (220, 934691), (430, 478214), (473, 434740), (860, 239107), (946, 217370), (1892, 108685), (2365, 86948), (4730, 43474), (9460, 21737)]