261434880

素因数分解:

$2^9\times 3^2\times 5^1\times 7^1\times {\mathrm{1621}}^1$

素因数の和:1657

約数の個数: 240

約数和(自身を含む): 1035406944

約数和(自身を除く): 773972064

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 256, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 504, 512, 560, 576, 630, 640, 672, 720, 768, 840, 896, 960, 1008, 1120, 1152, 1260, 1280, 1344, 1440, 1536, 1621, 1680, 1792, 1920, 2016, 2240, 2304, 2520, 2560, 2688, 2880, 3242, 3360, 3584, 3840, 4032, 4480, 4608, 4863, 5040, 5376, 5760, 6484, 6720, 7680, 8064, 8105, 8960, 9726, 10080, 10752, 11347, 11520, 12968, 13440, 14589, 16128, 16210, 17920, 19452, 20160, 22694, 23040, 24315, 25936, 26880, 29178, 32256, 32420, 34041, 38904, 40320, 45388, 48630, 51872, 53760, 56735, 58356, 64840, 68082, 72945, 77808, 80640, 90776, 97260, 102123, 103744, 113470, 116712, 129680, 136164, 145890, 155616, 161280, 170205, 181552, 194520, 204246, 207488, 226940, 233424, 259360, 272328, 291780, 311232, 340410, 363104, 389040, 408492, 414976, 453880, 466848, 510615, 518720, 544656, 583560, 622464, 680820, 726208, 778080, 816984, 829952, 907760, 933696, 1021230, 1037440, 1089312, 1167120, 1244928, 1361640, 1452416, 1556160, 1633968, 1815520, 1867392, 2042460, 2074880, 2178624, 2334240, 2489856, 2723280, 2904832, 3112320, 3267936, 3631040, 3734784, 4084920, 4149760, 4357248, 4668480, 5446560, 5809664, 6224640, 6535872, 7262080, 7469568, 8169840, 8714496, 9336960, 10893120, 12449280, 13071744, 14524160, 16339680, 17428992, 18673920, 21786240, 26143488, 29048320, 32679360, 37347840, 43572480, 52286976, 65358720, 87144960, 130717440, 261434880]

約数ペア:

[(1, 261434880), (2, 130717440), (3, 87144960), (4, 65358720), (5, 52286976), (6, 43572480), (7, 37347840), (8, 32679360), (9, 29048320), (10, 26143488), (12, 21786240), (14, 18673920), (15, 17428992), (16, 16339680), (18, 14524160), (20, 13071744), (21, 12449280), (24, 10893120), (28, 9336960), (30, 8714496), (32, 8169840), (35, 7469568), (36, 7262080), (40, 6535872), (42, 6224640), (45, 5809664), (48, 5446560), (56, 4668480), (60, 4357248), (63, 4149760), (64, 4084920), (70, 3734784), (72, 3631040), (80, 3267936), (84, 3112320), (90, 2904832), (96, 2723280), (105, 2489856), (112, 2334240), (120, 2178624), (126, 2074880), (128, 2042460), (140, 1867392), (144, 1815520), (160, 1633968), (168, 1556160), (180, 1452416), (192, 1361640), (210, 1244928), (224, 1167120), (240, 1089312), (252, 1037440), (256, 1021230), (280, 933696), (288, 907760), (315, 829952), (320, 816984), (336, 778080), (360, 726208), (384, 680820), (420, 622464), (448, 583560), (480, 544656), (504, 518720), (512, 510615), (560, 466848), (576, 453880), (630, 414976), (640, 408492), (672, 389040), (720, 363104), (768, 340410), (840, 311232), (896, 291780), (960, 272328), (1008, 259360), (1120, 233424), (1152, 226940), (1260, 207488), (1280, 204246), (1344, 194520), (1440, 181552), (1536, 170205), (1621, 161280), (1680, 155616), (1792, 145890), (1920, 136164), (2016, 129680), (2240, 116712), (2304, 113470), (2520, 103744), (2560, 102123), (2688, 97260), (2880, 90776), (3242, 80640), (3360, 77808), (3584, 72945), (3840, 68082), (4032, 64840), (4480, 58356), (4608, 56735), (4863, 53760), (5040, 51872), (5376, 48630), (5760, 45388), (6484, 40320), (6720, 38904), (7680, 34041), (8064, 32420), (8105, 32256), (8960, 29178), (9726, 26880), (10080, 25936), (10752, 24315), (11347, 23040), (11520, 22694), (12968, 20160), (13440, 19452), (14589, 17920), (16128, 16210)]