256534560

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1381}}^1$

素因数の和:1448

約数の個数: 192

約数和(自身を含む): 919416960

約数和(自身を除く): 662882400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 43, 45, 48, 54, 60, 72, 80, 86, 90, 96, 108, 120, 129, 135, 144, 160, 172, 180, 215, 216, 240, 258, 270, 288, 344, 360, 387, 430, 432, 480, 516, 540, 645, 688, 720, 774, 860, 864, 1032, 1080, 1161, 1290, 1376, 1381, 1440, 1548, 1720, 1935, 2064, 2160, 2322, 2580, 2762, 3096, 3440, 3870, 4128, 4143, 4320, 4644, 5160, 5524, 5805, 6192, 6880, 6905, 7740, 8286, 9288, 10320, 11048, 11610, 12384, 12429, 13810, 15480, 16572, 18576, 20640, 20715, 22096, 23220, 24858, 27620, 30960, 33144, 37152, 37287, 41430, 44192, 46440, 49716, 55240, 59383, 61920, 62145, 66288, 74574, 82860, 92880, 99432, 110480, 118766, 124290, 132576, 149148, 165720, 178149, 185760, 186435, 198864, 220960, 237532, 248580, 296915, 298296, 331440, 356298, 372870, 397728, 475064, 497160, 534447, 593830, 596592, 662880, 712596, 745740, 890745, 950128, 994320, 1068894, 1187660, 1193184, 1425192, 1491480, 1603341, 1781490, 1900256, 1988640, 2137788, 2375320, 2672235, 2850384, 2982960, 3206682, 3562980, 4275576, 4750640, 5344470, 5700768, 5965920, 6413364, 7125960, 8016705, 8551152, 9501280, 10688940, 12826728, 14251920, 16033410, 17102304, 21377880, 25653456, 28503840, 32066820, 42755760, 51306912, 64133640, 85511520, 128267280, 256534560]

約数ペア:

[(1, 256534560), (2, 128267280), (3, 85511520), (4, 64133640), (5, 51306912), (6, 42755760), (8, 32066820), (9, 28503840), (10, 25653456), (12, 21377880), (15, 17102304), (16, 16033410), (18, 14251920), (20, 12826728), (24, 10688940), (27, 9501280), (30, 8551152), (32, 8016705), (36, 7125960), (40, 6413364), (43, 5965920), (45, 5700768), (48, 5344470), (54, 4750640), (60, 4275576), (72, 3562980), (80, 3206682), (86, 2982960), (90, 2850384), (96, 2672235), (108, 2375320), (120, 2137788), (129, 1988640), (135, 1900256), (144, 1781490), (160, 1603341), (172, 1491480), (180, 1425192), (215, 1193184), (216, 1187660), (240, 1068894), (258, 994320), (270, 950128), (288, 890745), (344, 745740), (360, 712596), (387, 662880), (430, 596592), (432, 593830), (480, 534447), (516, 497160), (540, 475064), (645, 397728), (688, 372870), (720, 356298), (774, 331440), (860, 298296), (864, 296915), (1032, 248580), (1080, 237532), (1161, 220960), (1290, 198864), (1376, 186435), (1381, 185760), (1440, 178149), (1548, 165720), (1720, 149148), (1935, 132576), (2064, 124290), (2160, 118766), (2322, 110480), (2580, 99432), (2762, 92880), (3096, 82860), (3440, 74574), (3870, 66288), (4128, 62145), (4143, 61920), (4320, 59383), (4644, 55240), (5160, 49716), (5524, 46440), (5805, 44192), (6192, 41430), (6880, 37287), (6905, 37152), (7740, 33144), (8286, 30960), (9288, 27620), (10320, 24858), (11048, 23220), (11610, 22096), (12384, 20715), (12429, 20640), (13810, 18576), (15480, 16572)]