720628479

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{463}}^1$

素因数の和:668

約数の個数: 48

約数和(自身を含む): 1114134528

約数和(自身を除く): 393506049

約数列:

[1, 3, 9, 23, 69, 73, 103, 207, 219, 309, 463, 657, 927, 1389, 1679, 2369, 4167, 5037, 7107, 7519, 10649, 15111, 21321, 22557, 31947, 33799, 47689, 67671, 95841, 101397, 143067, 172937, 304191, 429201, 518811, 777377, 1096847, 1556433, 2332131, 3290541, 3481297, 6996393, 9871623, 10443891, 31331673, 80069831, 240209493, 720628479]

約数ペア:

[(1, 720628479), (3, 240209493), (9, 80069831), (23, 31331673), (69, 10443891), (73, 9871623), (103, 6996393), (207, 3481297), (219, 3290541), (309, 2332131), (463, 1556433), (657, 1096847), (927, 777377), (1389, 518811), (1679, 429201), (2369, 304191), (4167, 172937), (5037, 143067), (7107, 101397), (7519, 95841), (10649, 67671), (15111, 47689), (21321, 33799), (22557, 31947)]