218728444

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1\times {\mathrm{599}}^1$

素因数の和:850

約数の個数: 48

約数和(自身を含む): 430214400

約数和(自身を除く): 211485956

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 193, 386, 473, 599, 772, 946, 1198, 1892, 2123, 2396, 4246, 6589, 8299, 8492, 13178, 16598, 25757, 26356, 33196, 51514, 91289, 103028, 115607, 182578, 231214, 283327, 365156, 462428, 566654, 1133308, 1271677, 2543354, 4971101, 5086708, 9942202, 19884404, 54682111, 109364222, 218728444]

約数ペア:

[(1, 218728444), (2, 109364222), (4, 54682111), (11, 19884404), (22, 9942202), (43, 5086708), (44, 4971101), (86, 2543354), (172, 1271677), (193, 1133308), (386, 566654), (473, 462428), (599, 365156), (772, 283327), (946, 231214), (1198, 182578), (1892, 115607), (2123, 103028), (2396, 91289), (4246, 51514), (6589, 33196), (8299, 26356), (8492, 25757), (13178, 16598)]