256740480

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{53}}^1$

素因数の和:136

約数の個数: 288

約数和(自身を含む): 935506260

約数和(自身を除く): 678765780

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 32, 36, 40, 45, 48, 53, 58, 60, 64, 72, 80, 87, 90, 96, 106, 116, 120, 128, 144, 145, 159, 160, 174, 180, 192, 212, 232, 240, 261, 265, 288, 290, 318, 320, 348, 360, 384, 424, 435, 464, 477, 480, 522, 530, 576, 580, 636, 640, 696, 720, 795, 841, 848, 870, 928, 954, 960, 1044, 1060, 1152, 1160, 1272, 1305, 1392, 1440, 1537, 1590, 1682, 1696, 1740, 1856, 1908, 1920, 2088, 2120, 2320, 2385, 2523, 2544, 2610, 2784, 2880, 3074, 3180, 3364, 3392, 3480, 3712, 3816, 4176, 4205, 4240, 4611, 4640, 4770, 5046, 5088, 5220, 5568, 5760, 6148, 6360, 6728, 6784, 6960, 7569, 7632, 7685, 8352, 8410, 8480, 9222, 9280, 9540, 10092, 10176, 10440, 11136, 12296, 12615, 12720, 13456, 13833, 13920, 15138, 15264, 15370, 16704, 16820, 16960, 18444, 18560, 19080, 20184, 20352, 20880, 23055, 24592, 25230, 25440, 26912, 27666, 27840, 30276, 30528, 30740, 33408, 33640, 33920, 36888, 37845, 38160, 40368, 41760, 44573, 46110, 49184, 50460, 50880, 53824, 55332, 55680, 60552, 61056, 61480, 67280, 69165, 73776, 75690, 76320, 80736, 83520, 89146, 92220, 98368, 100920, 101760, 107648, 110664, 121104, 122960, 133719, 134560, 138330, 147552, 151380, 152640, 161472, 167040, 178292, 184440, 196736, 201840, 221328, 222865, 242208, 245920, 267438, 269120, 276660, 295104, 302760, 305280, 322944, 356584, 368880, 401157, 403680, 442656, 445730, 484416, 491840, 534876, 538240, 553320, 590208, 605520, 668595, 713168, 737760, 802314, 807360, 885312, 891460, 968832, 983680, 1069752, 1106640, 1211040, 1337190, 1426336, 1475520, 1604628, 1614720, 1770624, 1782920, 2005785, 2139504, 2213280, 2422080, 2674380, 2852672, 2951040, 3209256, 3565840, 4011570, 4279008, 4426560, 4844160, 5348760, 5705344, 6418512, 7131680, 8023140, 8558016, 8853120, 10697520, 12837024, 14263360, 16046280, 17116032, 21395040, 25674048, 28526720, 32092560, 42790080, 51348096, 64185120, 85580160, 128370240, 256740480]

約数ペア:

[(1, 256740480), (2, 128370240), (3, 85580160), (4, 64185120), (5, 51348096), (6, 42790080), (8, 32092560), (9, 28526720), (10, 25674048), (12, 21395040), (15, 17116032), (16, 16046280), (18, 14263360), (20, 12837024), (24, 10697520), (29, 8853120), (30, 8558016), (32, 8023140), (36, 7131680), (40, 6418512), (45, 5705344), (48, 5348760), (53, 4844160), (58, 4426560), (60, 4279008), (64, 4011570), (72, 3565840), (80, 3209256), (87, 2951040), (90, 2852672), (96, 2674380), (106, 2422080), (116, 2213280), (120, 2139504), (128, 2005785), (144, 1782920), (145, 1770624), (159, 1614720), (160, 1604628), (174, 1475520), (180, 1426336), (192, 1337190), (212, 1211040), (232, 1106640), (240, 1069752), (261, 983680), (265, 968832), (288, 891460), (290, 885312), (318, 807360), (320, 802314), (348, 737760), (360, 713168), (384, 668595), (424, 605520), (435, 590208), (464, 553320), (477, 538240), (480, 534876), (522, 491840), (530, 484416), (576, 445730), (580, 442656), (636, 403680), (640, 401157), (696, 368880), (720, 356584), (795, 322944), (841, 305280), (848, 302760), (870, 295104), (928, 276660), (954, 269120), (960, 267438), (1044, 245920), (1060, 242208), (1152, 222865), (1160, 221328), (1272, 201840), (1305, 196736), (1392, 184440), (1440, 178292), (1537, 167040), (1590, 161472), (1682, 152640), (1696, 151380), (1740, 147552), (1856, 138330), (1908, 134560), (1920, 133719), (2088, 122960), (2120, 121104), (2320, 110664), (2385, 107648), (2523, 101760), (2544, 100920), (2610, 98368), (2784, 92220), (2880, 89146), (3074, 83520), (3180, 80736), (3364, 76320), (3392, 75690), (3480, 73776), (3712, 69165), (3816, 67280), (4176, 61480), (4205, 61056), (4240, 60552), (4611, 55680), (4640, 55332), (4770, 53824), (5046, 50880), (5088, 50460), (5220, 49184), (5568, 46110), (5760, 44573), (6148, 41760), (6360, 40368), (6728, 38160), (6784, 37845), (6960, 36888), (7569, 33920), (7632, 33640), (7685, 33408), (8352, 30740), (8410, 30528), (8480, 30276), (9222, 27840), (9280, 27666), (9540, 26912), (10092, 25440), (10176, 25230), (10440, 24592), (11136, 23055), (12296, 20880), (12615, 20352), (12720, 20184), (13456, 19080), (13833, 18560), (13920, 18444), (15138, 16960), (15264, 16820), (15370, 16704)]