20123681985

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{589187}}^1$

素因数の和:589235

約数の個数: 64

約数和(自身を含む): 40724674560

約数和(自身を除く): 20600992575

約数列:

[1, 3, 5, 9, 11, 15, 23, 27, 33, 45, 55, 69, 99, 115, 135, 165, 207, 253, 297, 345, 495, 621, 759, 1035, 1265, 1485, 2277, 3105, 3795, 6831, 11385, 34155, 589187, 1767561, 2945935, 5302683, 6481057, 8837805, 13551301, 15908049, 19443171, 26513415, 32405285, 40653903, 58329513, 67756505, 79540245, 97215855, 121961709, 149064311, 174988539, 203269515, 291647565, 365885127, 447192933, 609808545, 745321555, 874942695, 1341578799, 1829425635, 2235964665, 4024736397, 6707893995, 20123681985]

約数ペア:

[(1, 20123681985), (3, 6707893995), (5, 4024736397), (9, 2235964665), (11, 1829425635), (15, 1341578799), (23, 874942695), (27, 745321555), (33, 609808545), (45, 447192933), (55, 365885127), (69, 291647565), (99, 203269515), (115, 174988539), (135, 149064311), (165, 121961709), (207, 97215855), (253, 79540245), (297, 67756505), (345, 58329513), (495, 40653903), (621, 32405285), (759, 26513415), (1035, 19443171), (1265, 15908049), (1485, 13551301), (2277, 8837805), (3105, 6481057), (3795, 5302683), (6831, 2945935), (11385, 1767561), (34155, 589187)]