20175725416

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{379}}^1\times {\mathrm{971}}^1$

素因数の和:1463

約数の個数: 128

約数和(自身を含む): 47869056000

約数和(自身を除く): 27693330584

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 89, 154, 178, 308, 356, 379, 616, 623, 712, 758, 971, 979, 1246, 1516, 1942, 1958, 2492, 2653, 3032, 3884, 3916, 4169, 4984, 5306, 6797, 6853, 7768, 7832, 8338, 10612, 10681, 13594, 13706, 16676, 21224, 21362, 27188, 27412, 29183, 33352, 33731, 42724, 54376, 54824, 58366, 67462, 74767, 85448, 86419, 116732, 134924, 149534, 172838, 233464, 236117, 269848, 299068, 345676, 368009, 371041, 472234, 598136, 604933, 691352, 736018, 742082, 944468, 950609, 1209866, 1472036, 1484164, 1888936, 1901218, 2419732, 2576063, 2597287, 2944072, 2968328, 3802436, 4048099, 4839464, 5152126, 5194574, 6654263, 7604872, 8096198, 10304252, 10389148, 13308526, 16192396, 20608504, 20778296, 26617052, 28336693, 32384792, 32752801, 53234104, 56673386, 65505602, 113346772, 131011204, 226693544, 229269607, 262022408, 360280811, 458539214, 720561622, 917078428, 1441123244, 1834156856, 2521965677, 2882246488, 5043931354, 10087862708, 20175725416]

約数ペア:

[(1, 20175725416), (2, 10087862708), (4, 5043931354), (7, 2882246488), (8, 2521965677), (11, 1834156856), (14, 1441123244), (22, 917078428), (28, 720561622), (44, 458539214), (56, 360280811), (77, 262022408), (88, 229269607), (89, 226693544), (154, 131011204), (178, 113346772), (308, 65505602), (356, 56673386), (379, 53234104), (616, 32752801), (623, 32384792), (712, 28336693), (758, 26617052), (971, 20778296), (979, 20608504), (1246, 16192396), (1516, 13308526), (1942, 10389148), (1958, 10304252), (2492, 8096198), (2653, 7604872), (3032, 6654263), (3884, 5194574), (3916, 5152126), (4169, 4839464), (4984, 4048099), (5306, 3802436), (6797, 2968328), (6853, 2944072), (7768, 2597287), (7832, 2576063), (8338, 2419732), (10612, 1901218), (10681, 1888936), (13594, 1484164), (13706, 1472036), (16676, 1209866), (21224, 950609), (21362, 944468), (27188, 742082), (27412, 736018), (29183, 691352), (33352, 604933), (33731, 598136), (42724, 472234), (54376, 371041), (54824, 368009), (58366, 345676), (67462, 299068), (74767, 269848), (85448, 236117), (86419, 233464), (116732, 172838), (134924, 149534)]