20985282560

素因数分解:

$2^{17}\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:162

約数の個数: 288

約数和(自身を含む): 57075871104

約数和(自身を除く): 36090588544

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 41, 44, 55, 64, 71, 80, 82, 88, 110, 128, 142, 160, 164, 176, 205, 220, 256, 284, 320, 328, 352, 355, 410, 440, 451, 512, 568, 640, 656, 704, 710, 781, 820, 880, 902, 1024, 1136, 1280, 1312, 1408, 1420, 1562, 1640, 1760, 1804, 2048, 2255, 2272, 2560, 2624, 2816, 2840, 2911, 3124, 3280, 3520, 3608, 3905, 4096, 4510, 4544, 5120, 5248, 5632, 5680, 5822, 6248, 6560, 7040, 7216, 7810, 8192, 9020, 9088, 10240, 10496, 11264, 11360, 11644, 12496, 13120, 14080, 14432, 14555, 15620, 16384, 18040, 18176, 20480, 20992, 22528, 22720, 23288, 24992, 26240, 28160, 28864, 29110, 31240, 32021, 32768, 36080, 36352, 40960, 41984, 45056, 45440, 46576, 49984, 52480, 56320, 57728, 58220, 62480, 64042, 65536, 72160, 72704, 81920, 83968, 90112, 90880, 93152, 99968, 104960, 112640, 115456, 116440, 124960, 128084, 131072, 144320, 145408, 160105, 163840, 167936, 180224, 181760, 186304, 199936, 209920, 225280, 230912, 232880, 249920, 256168, 288640, 290816, 320210, 327680, 335872, 360448, 363520, 372608, 399872, 419840, 450560, 461824, 465760, 499840, 512336, 577280, 581632, 640420, 655360, 671744, 720896, 727040, 745216, 799744, 839680, 901120, 923648, 931520, 999680, 1024672, 1154560, 1163264, 1280840, 1343488, 1441792, 1454080, 1490432, 1599488, 1679360, 1802240, 1847296, 1863040, 1999360, 2049344, 2309120, 2326528, 2561680, 2686976, 2908160, 2980864, 3198976, 3358720, 3604480, 3694592, 3726080, 3998720, 4098688, 4618240, 4653056, 5123360, 5373952, 5816320, 5961728, 6397952, 6717440, 7208960, 7389184, 7452160, 7997440, 8197376, 9236480, 9306112, 10246720, 11632640, 11923456, 12795904, 13434880, 14778368, 14904320, 15994880, 16394752, 18472960, 20493440, 23265280, 23846912, 25591808, 26869760, 29556736, 29808640, 31989760, 32789504, 36945920, 40986880, 46530560, 47693824, 51183616, 59113472, 59617280, 63979520, 65579008, 73891840, 81973760, 95387648, 102367232, 119234560, 127959040, 131158016, 147783680, 163947520, 190775296, 238469120, 255918080, 262316032, 295567360, 327895040, 381550592, 476938240, 511836160, 524632064, 655790080, 953876480, 1049264128, 1311580160, 1907752960, 2098528256, 2623160320, 4197056512, 5246320640, 10492641280, 20985282560]

約数ペア:

[(1, 20985282560), (2, 10492641280), (4, 5246320640), (5, 4197056512), (8, 2623160320), (10, 2098528256), (11, 1907752960), (16, 1311580160), (20, 1049264128), (22, 953876480), (32, 655790080), (40, 524632064), (41, 511836160), (44, 476938240), (55, 381550592), (64, 327895040), (71, 295567360), (80, 262316032), (82, 255918080), (88, 238469120), (110, 190775296), (128, 163947520), (142, 147783680), (160, 131158016), (164, 127959040), (176, 119234560), (205, 102367232), (220, 95387648), (256, 81973760), (284, 73891840), (320, 65579008), (328, 63979520), (352, 59617280), (355, 59113472), (410, 51183616), (440, 47693824), (451, 46530560), (512, 40986880), (568, 36945920), (640, 32789504), (656, 31989760), (704, 29808640), (710, 29556736), (781, 26869760), (820, 25591808), (880, 23846912), (902, 23265280), (1024, 20493440), (1136, 18472960), (1280, 16394752), (1312, 15994880), (1408, 14904320), (1420, 14778368), (1562, 13434880), (1640, 12795904), (1760, 11923456), (1804, 11632640), (2048, 10246720), (2255, 9306112), (2272, 9236480), (2560, 8197376), (2624, 7997440), (2816, 7452160), (2840, 7389184), (2911, 7208960), (3124, 6717440), (3280, 6397952), (3520, 5961728), (3608, 5816320), (3905, 5373952), (4096, 5123360), (4510, 4653056), (4544, 4618240), (5120, 4098688), (5248, 3998720), (5632, 3726080), (5680, 3694592), (5822, 3604480), (6248, 3358720), (6560, 3198976), (7040, 2980864), (7216, 2908160), (7810, 2686976), (8192, 2561680), (9020, 2326528), (9088, 2309120), (10240, 2049344), (10496, 1999360), (11264, 1863040), (11360, 1847296), (11644, 1802240), (12496, 1679360), (13120, 1599488), (14080, 1490432), (14432, 1454080), (14555, 1441792), (15620, 1343488), (16384, 1280840), (18040, 1163264), (18176, 1154560), (20480, 1024672), (20992, 999680), (22528, 931520), (22720, 923648), (23288, 901120), (24992, 839680), (26240, 799744), (28160, 745216), (28864, 727040), (29110, 720896), (31240, 671744), (32021, 655360), (32768, 640420), (36080, 581632), (36352, 577280), (40960, 512336), (41984, 499840), (45056, 465760), (45440, 461824), (46576, 450560), (49984, 419840), (52480, 399872), (56320, 372608), (57728, 363520), (58220, 360448), (62480, 335872), (64042, 327680), (65536, 320210), (72160, 290816), (72704, 288640), (81920, 256168), (83968, 249920), (90112, 232880), (90880, 230912), (93152, 225280), (99968, 209920), (104960, 199936), (112640, 186304), (115456, 181760), (116440, 180224), (124960, 167936), (128084, 163840), (131072, 160105), (144320, 145408)]