256677120

素因数分解:

$2^8\times 3^3\times 5^1\times 7^1\times {\mathrm{1061}}^1$

素因数の和:1098

約数の個数: 288

約数和(自身を含む): 1041949440

約数和(自身を除く): 785272320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 128, 135, 140, 144, 160, 168, 180, 189, 192, 210, 216, 224, 240, 252, 256, 270, 280, 288, 315, 320, 336, 360, 378, 384, 420, 432, 448, 480, 504, 540, 560, 576, 630, 640, 672, 720, 756, 768, 840, 864, 896, 945, 960, 1008, 1061, 1080, 1120, 1152, 1260, 1280, 1344, 1440, 1512, 1680, 1728, 1792, 1890, 1920, 2016, 2122, 2160, 2240, 2304, 2520, 2688, 2880, 3024, 3183, 3360, 3456, 3780, 3840, 4032, 4244, 4320, 4480, 5040, 5305, 5376, 5760, 6048, 6366, 6720, 6912, 7427, 7560, 8064, 8488, 8640, 8960, 9549, 10080, 10610, 11520, 12096, 12732, 13440, 14854, 15120, 15915, 16128, 16976, 17280, 19098, 20160, 21220, 22281, 24192, 25464, 26880, 28647, 29708, 30240, 31830, 33952, 34560, 37135, 38196, 40320, 42440, 44562, 47745, 48384, 50928, 57294, 59416, 60480, 63660, 66843, 67904, 74270, 76392, 80640, 84880, 89124, 95490, 101856, 111405, 114588, 118832, 120960, 127320, 133686, 135808, 143235, 148540, 152784, 169760, 178248, 190980, 200529, 203712, 222810, 229176, 237664, 241920, 254640, 267372, 271616, 286470, 297080, 305568, 334215, 339520, 356496, 381960, 401058, 407424, 445620, 458352, 475328, 509280, 534744, 572940, 594160, 611136, 668430, 679040, 712992, 763920, 802116, 814848, 891240, 916704, 950656, 1002645, 1018560, 1069488, 1145880, 1188320, 1222272, 1336860, 1358080, 1425984, 1527840, 1604232, 1782480, 1833408, 1901312, 2005290, 2037120, 2138976, 2291760, 2376640, 2444544, 2673720, 2851968, 3055680, 3208464, 3564960, 3666816, 4010580, 4074240, 4277952, 4583520, 4753280, 5347440, 5703936, 6111360, 6416928, 7129920, 7333632, 8021160, 8555904, 9167040, 9506560, 10694880, 12222720, 12833856, 14259840, 16042320, 17111808, 18334080, 21389760, 25667712, 28519680, 32084640, 36668160, 42779520, 51335424, 64169280, 85559040, 128338560, 256677120]

約数ペア:

[(1, 256677120), (2, 128338560), (3, 85559040), (4, 64169280), (5, 51335424), (6, 42779520), (7, 36668160), (8, 32084640), (9, 28519680), (10, 25667712), (12, 21389760), (14, 18334080), (15, 17111808), (16, 16042320), (18, 14259840), (20, 12833856), (21, 12222720), (24, 10694880), (27, 9506560), (28, 9167040), (30, 8555904), (32, 8021160), (35, 7333632), (36, 7129920), (40, 6416928), (42, 6111360), (45, 5703936), (48, 5347440), (54, 4753280), (56, 4583520), (60, 4277952), (63, 4074240), (64, 4010580), (70, 3666816), (72, 3564960), (80, 3208464), (84, 3055680), (90, 2851968), (96, 2673720), (105, 2444544), (108, 2376640), (112, 2291760), (120, 2138976), (126, 2037120), (128, 2005290), (135, 1901312), (140, 1833408), (144, 1782480), (160, 1604232), (168, 1527840), (180, 1425984), (189, 1358080), (192, 1336860), (210, 1222272), (216, 1188320), (224, 1145880), (240, 1069488), (252, 1018560), (256, 1002645), (270, 950656), (280, 916704), (288, 891240), (315, 814848), (320, 802116), (336, 763920), (360, 712992), (378, 679040), (384, 668430), (420, 611136), (432, 594160), (448, 572940), (480, 534744), (504, 509280), (540, 475328), (560, 458352), (576, 445620), (630, 407424), (640, 401058), (672, 381960), (720, 356496), (756, 339520), (768, 334215), (840, 305568), (864, 297080), (896, 286470), (945, 271616), (960, 267372), (1008, 254640), (1061, 241920), (1080, 237664), (1120, 229176), (1152, 222810), (1260, 203712), (1280, 200529), (1344, 190980), (1440, 178248), (1512, 169760), (1680, 152784), (1728, 148540), (1792, 143235), (1890, 135808), (1920, 133686), (2016, 127320), (2122, 120960), (2160, 118832), (2240, 114588), (2304, 111405), (2520, 101856), (2688, 95490), (2880, 89124), (3024, 84880), (3183, 80640), (3360, 76392), (3456, 74270), (3780, 67904), (3840, 66843), (4032, 63660), (4244, 60480), (4320, 59416), (4480, 57294), (5040, 50928), (5305, 48384), (5376, 47745), (5760, 44562), (6048, 42440), (6366, 40320), (6720, 38196), (6912, 37135), (7427, 34560), (7560, 33952), (8064, 31830), (8488, 30240), (8640, 29708), (8960, 28647), (9549, 26880), (10080, 25464), (10610, 24192), (11520, 22281), (12096, 21220), (12732, 20160), (13440, 19098), (14854, 17280), (15120, 16976), (15915, 16128)]