261448320

素因数分解:

$2^7\times 3^1\times 5^1\times 7^3\times {\mathrm{397}}^1$

素因数の和:440

約数の個数: 256

約数和(自身を含む): 974304000

約数和(自身を除く): 712855680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 64, 70, 80, 84, 96, 98, 105, 112, 120, 128, 140, 147, 160, 168, 192, 196, 210, 224, 240, 245, 280, 294, 320, 336, 343, 384, 392, 397, 420, 448, 480, 490, 560, 588, 640, 672, 686, 735, 784, 794, 840, 896, 960, 980, 1029, 1120, 1176, 1191, 1344, 1372, 1470, 1568, 1588, 1680, 1715, 1920, 1960, 1985, 2058, 2240, 2352, 2382, 2688, 2744, 2779, 2940, 3136, 3176, 3360, 3430, 3920, 3970, 4116, 4480, 4704, 4764, 5145, 5488, 5558, 5880, 5955, 6272, 6352, 6720, 6860, 7840, 7940, 8232, 8337, 9408, 9528, 10290, 10976, 11116, 11760, 11910, 12704, 13440, 13720, 13895, 15680, 15880, 16464, 16674, 18816, 19056, 19453, 20580, 21952, 22232, 23520, 23820, 25408, 27440, 27790, 31360, 31760, 32928, 33348, 38112, 38906, 41160, 41685, 43904, 44464, 47040, 47640, 50816, 54880, 55580, 58359, 63520, 65856, 66696, 76224, 77812, 82320, 83370, 88928, 94080, 95280, 97265, 109760, 111160, 116718, 127040, 131712, 133392, 136171, 152448, 155624, 164640, 166740, 177856, 190560, 194530, 219520, 222320, 233436, 254080, 266784, 272342, 291795, 311248, 329280, 333480, 355712, 381120, 389060, 408513, 444640, 466872, 533568, 544684, 583590, 622496, 658560, 666960, 680855, 762240, 778120, 817026, 889280, 933744, 1067136, 1089368, 1167180, 1244992, 1333920, 1361710, 1556240, 1634052, 1778560, 1867488, 2042565, 2178736, 2334360, 2489984, 2667840, 2723420, 3112480, 3268104, 3734976, 4085130, 4357472, 4668720, 5335680, 5446840, 6224960, 6536208, 7469952, 8170260, 8714944, 9337440, 10893680, 12449920, 13072416, 16340520, 17429888, 18674880, 21787360, 26144832, 32681040, 37349760, 43574720, 52289664, 65362080, 87149440, 130724160, 261448320]

約数ペア:

[(1, 261448320), (2, 130724160), (3, 87149440), (4, 65362080), (5, 52289664), (6, 43574720), (7, 37349760), (8, 32681040), (10, 26144832), (12, 21787360), (14, 18674880), (15, 17429888), (16, 16340520), (20, 13072416), (21, 12449920), (24, 10893680), (28, 9337440), (30, 8714944), (32, 8170260), (35, 7469952), (40, 6536208), (42, 6224960), (48, 5446840), (49, 5335680), (56, 4668720), (60, 4357472), (64, 4085130), (70, 3734976), (80, 3268104), (84, 3112480), (96, 2723420), (98, 2667840), (105, 2489984), (112, 2334360), (120, 2178736), (128, 2042565), (140, 1867488), (147, 1778560), (160, 1634052), (168, 1556240), (192, 1361710), (196, 1333920), (210, 1244992), (224, 1167180), (240, 1089368), (245, 1067136), (280, 933744), (294, 889280), (320, 817026), (336, 778120), (343, 762240), (384, 680855), (392, 666960), (397, 658560), (420, 622496), (448, 583590), (480, 544684), (490, 533568), (560, 466872), (588, 444640), (640, 408513), (672, 389060), (686, 381120), (735, 355712), (784, 333480), (794, 329280), (840, 311248), (896, 291795), (960, 272342), (980, 266784), (1029, 254080), (1120, 233436), (1176, 222320), (1191, 219520), (1344, 194530), (1372, 190560), (1470, 177856), (1568, 166740), (1588, 164640), (1680, 155624), (1715, 152448), (1920, 136171), (1960, 133392), (1985, 131712), (2058, 127040), (2240, 116718), (2352, 111160), (2382, 109760), (2688, 97265), (2744, 95280), (2779, 94080), (2940, 88928), (3136, 83370), (3176, 82320), (3360, 77812), (3430, 76224), (3920, 66696), (3970, 65856), (4116, 63520), (4480, 58359), (4704, 55580), (4764, 54880), (5145, 50816), (5488, 47640), (5558, 47040), (5880, 44464), (5955, 43904), (6272, 41685), (6352, 41160), (6720, 38906), (6860, 38112), (7840, 33348), (7940, 32928), (8232, 31760), (8337, 31360), (9408, 27790), (9528, 27440), (10290, 25408), (10976, 23820), (11116, 23520), (11760, 22232), (11910, 21952), (12704, 20580), (13440, 19453), (13720, 19056), (13895, 18816), (15680, 16674), (15880, 16464)]