20215653920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:317

約数の個数: 384

約数和(自身を含む): 61200728064

約数和(自身を除く): 40985074144

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 70, 71, 77, 80, 88, 110, 112, 121, 140, 142, 154, 160, 176, 191, 220, 224, 242, 280, 284, 308, 352, 355, 382, 385, 440, 484, 497, 560, 568, 605, 616, 710, 764, 770, 781, 847, 880, 955, 968, 994, 1120, 1136, 1210, 1232, 1331, 1337, 1420, 1528, 1540, 1562, 1694, 1760, 1910, 1936, 1988, 2101, 2272, 2420, 2464, 2485, 2662, 2674, 2840, 3056, 3080, 3124, 3388, 3820, 3872, 3905, 3976, 4202, 4235, 4840, 4970, 5324, 5348, 5467, 5680, 6112, 6160, 6248, 6655, 6685, 6776, 7640, 7810, 7952, 8404, 8470, 8591, 9317, 9680, 9940, 10505, 10648, 10696, 10934, 11360, 12320, 12496, 13310, 13370, 13552, 13561, 14707, 15280, 15620, 15904, 16808, 16940, 17182, 18634, 19360, 19880, 21010, 21296, 21392, 21868, 23111, 24992, 26620, 26740, 27104, 27122, 27335, 29414, 30560, 31240, 33616, 33880, 34364, 37268, 39760, 42020, 42592, 42784, 42955, 43736, 46222, 46585, 53240, 53480, 54244, 54670, 58828, 60137, 62480, 67232, 67760, 67805, 68728, 73535, 74536, 79520, 84040, 85910, 87472, 92444, 93170, 94501, 94927, 106480, 106960, 108488, 109340, 115555, 117656, 120274, 124960, 135520, 135610, 137456, 147070, 149072, 149171, 161777, 168080, 171820, 174944, 184888, 186340, 189002, 189854, 212960, 213920, 216976, 218680, 231110, 235312, 240548, 254221, 271220, 274912, 294140, 298144, 298342, 300685, 323554, 336160, 343640, 369776, 372680, 378004, 379708, 433952, 437360, 462220, 470624, 472505, 474635, 481096, 508442, 542440, 588280, 596684, 601370, 647108, 661507, 687280, 739552, 745360, 745855, 756008, 759416, 808885, 874720, 924440, 945010, 949270, 962192, 1016884, 1044197, 1084880, 1176560, 1193368, 1202740, 1271105, 1294216, 1323014, 1374560, 1490720, 1491710, 1512016, 1518832, 1617770, 1640881, 1779547, 1848880, 1890020, 1898540, 1924384, 2033768, 2088394, 2169760, 2353120, 2386736, 2405480, 2542210, 2588432, 2646028, 2983420, 3024032, 3037664, 3235540, 3281762, 3307535, 3559094, 3697760, 3780040, 3797080, 4067536, 4176788, 4773472, 4810960, 5084420, 5176864, 5220985, 5292056, 5966840, 6471080, 6563524, 6615070, 7118188, 7560080, 7594160, 8135072, 8204405, 8353576, 8897735, 9621920, 10168840, 10441970, 10584112, 11486167, 11933680, 12942160, 13127048, 13230140, 14236376, 15120160, 15188320, 16408810, 16707152, 17795470, 18049691, 20337680, 20883940, 21168224, 22972334, 23867360, 25884320, 26254096, 26460280, 28472752, 32817620, 33414304, 35590940, 36099382, 40675360, 41767880, 45944668, 52508192, 52920560, 56945504, 57430835, 65635240, 71181880, 72198764, 83535760, 90248455, 91889336, 105841120, 114861670, 126347837, 131270480, 142363760, 144397528, 167071520, 180496910, 183778672, 229723340, 252695674, 262540960, 284727520, 288795056, 360993820, 367557344, 459446680, 505391348, 577590112, 631739185, 721987640, 918893360, 1010782696, 1263478370, 1443975280, 1837786720, 2021565392, 2526956740, 2887950560, 4043130784, 5053913480, 10107826960, 20215653920]

約数ペア:

[(1, 20215653920), (2, 10107826960), (4, 5053913480), (5, 4043130784), (7, 2887950560), (8, 2526956740), (10, 2021565392), (11, 1837786720), (14, 1443975280), (16, 1263478370), (20, 1010782696), (22, 918893360), (28, 721987640), (32, 631739185), (35, 577590112), (40, 505391348), (44, 459446680), (55, 367557344), (56, 360993820), (70, 288795056), (71, 284727520), (77, 262540960), (80, 252695674), (88, 229723340), (110, 183778672), (112, 180496910), (121, 167071520), (140, 144397528), (142, 142363760), (154, 131270480), (160, 126347837), (176, 114861670), (191, 105841120), (220, 91889336), (224, 90248455), (242, 83535760), (280, 72198764), (284, 71181880), (308, 65635240), (352, 57430835), (355, 56945504), (382, 52920560), (385, 52508192), (440, 45944668), (484, 41767880), (497, 40675360), (560, 36099382), (568, 35590940), (605, 33414304), (616, 32817620), (710, 28472752), (764, 26460280), (770, 26254096), (781, 25884320), (847, 23867360), (880, 22972334), (955, 21168224), (968, 20883940), (994, 20337680), (1120, 18049691), (1136, 17795470), (1210, 16707152), (1232, 16408810), (1331, 15188320), (1337, 15120160), (1420, 14236376), (1528, 13230140), (1540, 13127048), (1562, 12942160), (1694, 11933680), (1760, 11486167), (1910, 10584112), (1936, 10441970), (1988, 10168840), (2101, 9621920), (2272, 8897735), (2420, 8353576), (2464, 8204405), (2485, 8135072), (2662, 7594160), (2674, 7560080), (2840, 7118188), (3056, 6615070), (3080, 6563524), (3124, 6471080), (3388, 5966840), (3820, 5292056), (3872, 5220985), (3905, 5176864), (3976, 5084420), (4202, 4810960), (4235, 4773472), (4840, 4176788), (4970, 4067536), (5324, 3797080), (5348, 3780040), (5467, 3697760), (5680, 3559094), (6112, 3307535), (6160, 3281762), (6248, 3235540), (6655, 3037664), (6685, 3024032), (6776, 2983420), (7640, 2646028), (7810, 2588432), (7952, 2542210), (8404, 2405480), (8470, 2386736), (8591, 2353120), (9317, 2169760), (9680, 2088394), (9940, 2033768), (10505, 1924384), (10648, 1898540), (10696, 1890020), (10934, 1848880), (11360, 1779547), (12320, 1640881), (12496, 1617770), (13310, 1518832), (13370, 1512016), (13552, 1491710), (13561, 1490720), (14707, 1374560), (15280, 1323014), (15620, 1294216), (15904, 1271105), (16808, 1202740), (16940, 1193368), (17182, 1176560), (18634, 1084880), (19360, 1044197), (19880, 1016884), (21010, 962192), (21296, 949270), (21392, 945010), (21868, 924440), (23111, 874720), (24992, 808885), (26620, 759416), (26740, 756008), (27104, 745855), (27122, 745360), (27335, 739552), (29414, 687280), (30560, 661507), (31240, 647108), (33616, 601370), (33880, 596684), (34364, 588280), (37268, 542440), (39760, 508442), (42020, 481096), (42592, 474635), (42784, 472505), (42955, 470624), (43736, 462220), (46222, 437360), (46585, 433952), (53240, 379708), (53480, 378004), (54244, 372680), (54670, 369776), (58828, 343640), (60137, 336160), (62480, 323554), (67232, 300685), (67760, 298342), (67805, 298144), (68728, 294140), (73535, 274912), (74536, 271220), (79520, 254221), (84040, 240548), (85910, 235312), (87472, 231110), (92444, 218680), (93170, 216976), (94501, 213920), (94927, 212960), (106480, 189854), (106960, 189002), (108488, 186340), (109340, 184888), (115555, 174944), (117656, 171820), (120274, 168080), (124960, 161777), (135520, 149171), (135610, 149072), (137456, 147070)]