7188740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{643}}^1$

素因数の和:708

約数の個数: 48

約数和(自身を含む): 16661568

約数和(自身を除く): 9472828

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 643, 860, 1118, 1286, 2236, 2572, 2795, 3215, 5590, 6430, 8359, 11180, 12860, 16718, 27649, 33436, 41795, 55298, 83590, 110596, 138245, 167180, 276490, 359437, 552980, 718874, 1437748, 1797185, 3594370, 7188740]

約数ペア:

[(1, 7188740), (2, 3594370), (4, 1797185), (5, 1437748), (10, 718874), (13, 552980), (20, 359437), (26, 276490), (43, 167180), (52, 138245), (65, 110596), (86, 83590), (130, 55298), (172, 41795), (215, 33436), (260, 27649), (430, 16718), (559, 12860), (643, 11180), (860, 8359), (1118, 6430), (1286, 5590), (2236, 3215), (2572, 2795)]