1620295040

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{647}}^1$

素因数の和:729

約数の個数: 256

約数和(自身を含む): 4885816320

約数和(自身を除く): 3265521280

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 43, 52, 56, 64, 65, 70, 80, 86, 91, 104, 112, 128, 130, 140, 160, 172, 182, 208, 215, 224, 260, 280, 301, 320, 344, 364, 416, 430, 448, 455, 520, 559, 560, 602, 640, 647, 688, 728, 832, 860, 896, 910, 1040, 1118, 1120, 1204, 1294, 1376, 1456, 1505, 1664, 1720, 1820, 2080, 2236, 2240, 2408, 2588, 2752, 2795, 2912, 3010, 3235, 3440, 3640, 3913, 4160, 4472, 4480, 4529, 4816, 5176, 5504, 5590, 5824, 6020, 6470, 6880, 7280, 7826, 8320, 8411, 8944, 9058, 9632, 10352, 11180, 11648, 12040, 12940, 13760, 14560, 15652, 16822, 17888, 18116, 19264, 19565, 20704, 22360, 22645, 24080, 25880, 27520, 27821, 29120, 31304, 33644, 35776, 36232, 38528, 39130, 41408, 42055, 44720, 45290, 48160, 51760, 55642, 58240, 58877, 62608, 67288, 71552, 72464, 78260, 82816, 84110, 89440, 90580, 96320, 103520, 111284, 117754, 125216, 134576, 139105, 144928, 156520, 168220, 178880, 181160, 192640, 194747, 207040, 222568, 235508, 250432, 269152, 278210, 289856, 294385, 313040, 336440, 357760, 361673, 362320, 389494, 414080, 445136, 471016, 500864, 538304, 556420, 579712, 588770, 626080, 672880, 723346, 724640, 778988, 890272, 942032, 973735, 1076608, 1112840, 1177540, 1252160, 1345760, 1446692, 1449280, 1557976, 1780544, 1808365, 1884064, 1947470, 2225680, 2355080, 2504320, 2531711, 2691520, 2893384, 2898560, 3115952, 3561088, 3616730, 3768128, 3894940, 4451360, 4710160, 5063422, 5383040, 5786768, 6231904, 7233460, 7536256, 7789880, 8902720, 9420320, 10126844, 11573536, 12463808, 12658555, 14466920, 15579760, 17805440, 18840640, 20253688, 23147072, 24927616, 25317110, 28933840, 31159520, 37681280, 40507376, 46294144, 50634220, 57867680, 62319040, 81014752, 101268440, 115735360, 124638080, 162029504, 202536880, 231470720, 324059008, 405073760, 810147520, 1620295040]

約数ペア:

[(1, 1620295040), (2, 810147520), (4, 405073760), (5, 324059008), (7, 231470720), (8, 202536880), (10, 162029504), (13, 124638080), (14, 115735360), (16, 101268440), (20, 81014752), (26, 62319040), (28, 57867680), (32, 50634220), (35, 46294144), (40, 40507376), (43, 37681280), (52, 31159520), (56, 28933840), (64, 25317110), (65, 24927616), (70, 23147072), (80, 20253688), (86, 18840640), (91, 17805440), (104, 15579760), (112, 14466920), (128, 12658555), (130, 12463808), (140, 11573536), (160, 10126844), (172, 9420320), (182, 8902720), (208, 7789880), (215, 7536256), (224, 7233460), (260, 6231904), (280, 5786768), (301, 5383040), (320, 5063422), (344, 4710160), (364, 4451360), (416, 3894940), (430, 3768128), (448, 3616730), (455, 3561088), (520, 3115952), (559, 2898560), (560, 2893384), (602, 2691520), (640, 2531711), (647, 2504320), (688, 2355080), (728, 2225680), (832, 1947470), (860, 1884064), (896, 1808365), (910, 1780544), (1040, 1557976), (1118, 1449280), (1120, 1446692), (1204, 1345760), (1294, 1252160), (1376, 1177540), (1456, 1112840), (1505, 1076608), (1664, 973735), (1720, 942032), (1820, 890272), (2080, 778988), (2236, 724640), (2240, 723346), (2408, 672880), (2588, 626080), (2752, 588770), (2795, 579712), (2912, 556420), (3010, 538304), (3235, 500864), (3440, 471016), (3640, 445136), (3913, 414080), (4160, 389494), (4472, 362320), (4480, 361673), (4529, 357760), (4816, 336440), (5176, 313040), (5504, 294385), (5590, 289856), (5824, 278210), (6020, 269152), (6470, 250432), (6880, 235508), (7280, 222568), (7826, 207040), (8320, 194747), (8411, 192640), (8944, 181160), (9058, 178880), (9632, 168220), (10352, 156520), (11180, 144928), (11648, 139105), (12040, 134576), (12940, 125216), (13760, 117754), (14560, 111284), (15652, 103520), (16822, 96320), (17888, 90580), (18116, 89440), (19264, 84110), (19565, 82816), (20704, 78260), (22360, 72464), (22645, 71552), (24080, 67288), (25880, 62608), (27520, 58877), (27821, 58240), (29120, 55642), (31304, 51760), (33644, 48160), (35776, 45290), (36232, 44720), (38528, 42055), (39130, 41408)]