20809156775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{359}}^1\times {\mathrm{1609}}^1$

素因数の和:2120

約数の個数: 48

約数和(自身を含む): 28460678400

約数和(自身を除く): 7651521625

約数列:

[1, 5, 11, 25, 55, 131, 275, 359, 655, 1441, 1609, 1795, 3275, 3949, 7205, 8045, 8975, 17699, 19745, 36025, 40225, 47029, 88495, 98725, 210779, 235145, 442475, 517319, 577631, 1053895, 1175725, 2318569, 2586595, 2888155, 5269475, 6353941, 11592845, 12932975, 14440775, 31769705, 57964225, 75669661, 158848525, 378348305, 832366271, 1891741525, 4161831355, 20809156775]

約数ペア:

[(1, 20809156775), (5, 4161831355), (11, 1891741525), (25, 832366271), (55, 378348305), (131, 158848525), (275, 75669661), (359, 57964225), (655, 31769705), (1441, 14440775), (1609, 12932975), (1795, 11592845), (3275, 6353941), (3949, 5269475), (7205, 2888155), (8045, 2586595), (8975, 2318569), (17699, 1175725), (19745, 1053895), (36025, 577631), (40225, 517319), (47029, 442475), (88495, 235145), (98725, 210779)]