20256964

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1$

素因数の和:173

約数の個数: 96

約数和(自身を含む): 47980800

約数和(自身を除く): 27723836

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 29, 38, 52, 58, 76, 91, 101, 116, 133, 182, 202, 203, 247, 266, 364, 377, 404, 406, 494, 532, 551, 707, 754, 812, 988, 1102, 1313, 1414, 1508, 1729, 1919, 2204, 2626, 2639, 2828, 2929, 3458, 3838, 3857, 5252, 5278, 5858, 6916, 7163, 7676, 7714, 9191, 10556, 11716, 13433, 14326, 15428, 18382, 20503, 24947, 26866, 28652, 36764, 38077, 41006, 49894, 50141, 53732, 55651, 76154, 82012, 99788, 100282, 111302, 152308, 174629, 200564, 222604, 266539, 349258, 389557, 533078, 698516, 723463, 779114, 1066156, 1446926, 1558228, 2893852, 5064241, 10128482, 20256964]

約数ペア:

[(1, 20256964), (2, 10128482), (4, 5064241), (7, 2893852), (13, 1558228), (14, 1446926), (19, 1066156), (26, 779114), (28, 723463), (29, 698516), (38, 533078), (52, 389557), (58, 349258), (76, 266539), (91, 222604), (101, 200564), (116, 174629), (133, 152308), (182, 111302), (202, 100282), (203, 99788), (247, 82012), (266, 76154), (364, 55651), (377, 53732), (404, 50141), (406, 49894), (494, 41006), (532, 38077), (551, 36764), (707, 28652), (754, 26866), (812, 24947), (988, 20503), (1102, 18382), (1313, 15428), (1414, 14326), (1508, 13433), (1729, 11716), (1919, 10556), (2204, 9191), (2626, 7714), (2639, 7676), (2828, 7163), (2929, 6916), (3458, 5858), (3838, 5278), (3857, 5252)]