20481040384

素因数分解:

$2^{13}\times 7^3\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:281

約数の個数: 224

約数和(自身を含む): 49306276800

約数和(自身を除く): 28825236416

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 49, 56, 64, 74, 98, 112, 128, 148, 196, 197, 224, 256, 259, 296, 343, 392, 394, 448, 512, 518, 592, 686, 784, 788, 896, 1024, 1036, 1184, 1372, 1379, 1568, 1576, 1792, 1813, 2048, 2072, 2368, 2744, 2758, 3136, 3152, 3584, 3626, 4096, 4144, 4736, 5488, 5516, 6272, 6304, 7168, 7252, 7289, 8192, 8288, 9472, 9653, 10976, 11032, 12544, 12608, 12691, 14336, 14504, 14578, 16576, 18944, 19306, 21952, 22064, 25088, 25216, 25382, 28672, 29008, 29156, 33152, 37888, 38612, 43904, 44128, 50176, 50432, 50764, 51023, 57344, 58016, 58312, 66304, 67571, 75776, 77224, 87808, 88256, 100352, 100864, 101528, 102046, 116032, 116624, 132608, 135142, 151552, 154448, 175616, 176512, 200704, 201728, 203056, 204092, 232064, 233248, 265216, 270284, 303104, 308896, 351232, 353024, 357161, 401408, 403456, 406112, 408184, 464128, 466496, 530432, 540568, 617792, 702464, 706048, 714322, 806912, 812224, 816368, 928256, 932992, 1060864, 1081136, 1235584, 1404928, 1412096, 1428644, 1613824, 1624448, 1632736, 1856512, 1865984, 2121728, 2162272, 2471168, 2500127, 2809856, 2824192, 2857288, 3248896, 3265472, 3713024, 3731968, 4324544, 4942336, 5000254, 5648384, 5714576, 6497792, 6530944, 7426048, 7463936, 8649088, 9884672, 10000508, 11296768, 11429152, 12995584, 13061888, 14852096, 14927872, 17298176, 19769344, 20001016, 22858304, 25991168, 26123776, 29855744, 34596352, 39538688, 40002032, 45716608, 51982336, 52247552, 59711488, 69192704, 79077376, 80004064, 91433216, 103964672, 104495104, 138385408, 160008128, 182866432, 208990208, 276770816, 320016256, 365732864, 417980416, 553541632, 640032512, 731465728, 1280065024, 1462931456, 2560130048, 2925862912, 5120260096, 10240520192, 20481040384]

約数ペア:

[(1, 20481040384), (2, 10240520192), (4, 5120260096), (7, 2925862912), (8, 2560130048), (14, 1462931456), (16, 1280065024), (28, 731465728), (32, 640032512), (37, 553541632), (49, 417980416), (56, 365732864), (64, 320016256), (74, 276770816), (98, 208990208), (112, 182866432), (128, 160008128), (148, 138385408), (196, 104495104), (197, 103964672), (224, 91433216), (256, 80004064), (259, 79077376), (296, 69192704), (343, 59711488), (392, 52247552), (394, 51982336), (448, 45716608), (512, 40002032), (518, 39538688), (592, 34596352), (686, 29855744), (784, 26123776), (788, 25991168), (896, 22858304), (1024, 20001016), (1036, 19769344), (1184, 17298176), (1372, 14927872), (1379, 14852096), (1568, 13061888), (1576, 12995584), (1792, 11429152), (1813, 11296768), (2048, 10000508), (2072, 9884672), (2368, 8649088), (2744, 7463936), (2758, 7426048), (3136, 6530944), (3152, 6497792), (3584, 5714576), (3626, 5648384), (4096, 5000254), (4144, 4942336), (4736, 4324544), (5488, 3731968), (5516, 3713024), (6272, 3265472), (6304, 3248896), (7168, 2857288), (7252, 2824192), (7289, 2809856), (8192, 2500127), (8288, 2471168), (9472, 2162272), (9653, 2121728), (10976, 1865984), (11032, 1856512), (12544, 1632736), (12608, 1624448), (12691, 1613824), (14336, 1428644), (14504, 1412096), (14578, 1404928), (16576, 1235584), (18944, 1081136), (19306, 1060864), (21952, 932992), (22064, 928256), (25088, 816368), (25216, 812224), (25382, 806912), (28672, 714322), (29008, 706048), (29156, 702464), (33152, 617792), (37888, 540568), (38612, 530432), (43904, 466496), (44128, 464128), (50176, 408184), (50432, 406112), (50764, 403456), (51023, 401408), (57344, 357161), (58016, 353024), (58312, 351232), (66304, 308896), (67571, 303104), (75776, 270284), (77224, 265216), (87808, 233248), (88256, 232064), (100352, 204092), (100864, 203056), (101528, 201728), (102046, 200704), (116032, 176512), (116624, 175616), (132608, 154448), (135142, 151552)]