19728684800

素因数分解:

$2^8\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{3947}}^1$

素因数の和:4055

約数の個数: 216

約数和(自身を含む): 54034791552

約数和(自身を除く): 34306106752

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 64, 71, 80, 88, 100, 110, 128, 142, 160, 176, 200, 220, 256, 275, 284, 320, 352, 355, 400, 440, 550, 568, 640, 704, 710, 781, 800, 880, 1100, 1136, 1280, 1408, 1420, 1562, 1600, 1760, 1775, 2200, 2272, 2816, 2840, 3124, 3200, 3520, 3550, 3905, 3947, 4400, 4544, 5680, 6248, 6400, 7040, 7100, 7810, 7894, 8800, 9088, 11360, 12496, 14080, 14200, 15620, 15788, 17600, 18176, 19525, 19735, 22720, 24992, 28400, 31240, 31576, 35200, 39050, 39470, 43417, 45440, 49984, 56800, 62480, 63152, 70400, 78100, 78940, 86834, 90880, 98675, 99968, 113600, 124960, 126304, 156200, 157880, 173668, 197350, 199936, 217085, 227200, 249920, 252608, 280237, 312400, 315760, 347336, 394700, 434170, 454400, 499840, 505216, 560474, 624800, 631520, 694672, 789400, 868340, 999680, 1010432, 1085425, 1120948, 1249600, 1263040, 1389344, 1401185, 1578800, 1736680, 2170850, 2241896, 2499200, 2526080, 2778688, 2802370, 3082607, 3157600, 3473360, 4341700, 4483792, 4998400, 5052160, 5557376, 5604740, 6165214, 6315200, 6946720, 7005925, 8683400, 8967584, 11114752, 11209480, 12330428, 12630400, 13893440, 14011850, 15413035, 17366800, 17935168, 22418960, 24660856, 25260800, 27786880, 28023700, 30826070, 34733600, 35870336, 44837920, 49321712, 55573760, 56047400, 61652140, 69467200, 71740672, 77065175, 89675840, 98643424, 112094800, 123304280, 138934400, 154130350, 179351680, 197286848, 224189600, 246608560, 277868800, 308260700, 358703360, 394573696, 448379200, 493217120, 616521400, 789147392, 896758400, 986434240, 1233042800, 1793516800, 1972868480, 2466085600, 3945736960, 4932171200, 9864342400, 19728684800]

約数ペア:

[(1, 19728684800), (2, 9864342400), (4, 4932171200), (5, 3945736960), (8, 2466085600), (10, 1972868480), (11, 1793516800), (16, 1233042800), (20, 986434240), (22, 896758400), (25, 789147392), (32, 616521400), (40, 493217120), (44, 448379200), (50, 394573696), (55, 358703360), (64, 308260700), (71, 277868800), (80, 246608560), (88, 224189600), (100, 197286848), (110, 179351680), (128, 154130350), (142, 138934400), (160, 123304280), (176, 112094800), (200, 98643424), (220, 89675840), (256, 77065175), (275, 71740672), (284, 69467200), (320, 61652140), (352, 56047400), (355, 55573760), (400, 49321712), (440, 44837920), (550, 35870336), (568, 34733600), (640, 30826070), (704, 28023700), (710, 27786880), (781, 25260800), (800, 24660856), (880, 22418960), (1100, 17935168), (1136, 17366800), (1280, 15413035), (1408, 14011850), (1420, 13893440), (1562, 12630400), (1600, 12330428), (1760, 11209480), (1775, 11114752), (2200, 8967584), (2272, 8683400), (2816, 7005925), (2840, 6946720), (3124, 6315200), (3200, 6165214), (3520, 5604740), (3550, 5557376), (3905, 5052160), (3947, 4998400), (4400, 4483792), (4544, 4341700), (5680, 3473360), (6248, 3157600), (6400, 3082607), (7040, 2802370), (7100, 2778688), (7810, 2526080), (7894, 2499200), (8800, 2241896), (9088, 2170850), (11360, 1736680), (12496, 1578800), (14080, 1401185), (14200, 1389344), (15620, 1263040), (15788, 1249600), (17600, 1120948), (18176, 1085425), (19525, 1010432), (19735, 999680), (22720, 868340), (24992, 789400), (28400, 694672), (31240, 631520), (31576, 624800), (35200, 560474), (39050, 505216), (39470, 499840), (43417, 454400), (45440, 434170), (49984, 394700), (56800, 347336), (62480, 315760), (63152, 312400), (70400, 280237), (78100, 252608), (78940, 249920), (86834, 227200), (90880, 217085), (98675, 199936), (99968, 197350), (113600, 173668), (124960, 157880), (126304, 156200)]