256443840

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{443}}^1$

素因数の和:536

約数の個数: 224

約数和(自身を含む): 920252160

約数和(自身を除く): 663808320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 67, 72, 80, 90, 96, 108, 120, 134, 135, 144, 160, 180, 192, 201, 216, 240, 268, 270, 288, 320, 335, 360, 402, 432, 443, 480, 536, 540, 576, 603, 670, 720, 804, 864, 886, 960, 1005, 1072, 1080, 1206, 1329, 1340, 1440, 1608, 1728, 1772, 1809, 2010, 2144, 2160, 2215, 2412, 2658, 2680, 2880, 3015, 3216, 3544, 3618, 3987, 4020, 4288, 4320, 4430, 4824, 5316, 5360, 6030, 6432, 6645, 7088, 7236, 7974, 8040, 8640, 8860, 9045, 9648, 10632, 10720, 11961, 12060, 12864, 13290, 14176, 14472, 15948, 16080, 17720, 18090, 19296, 19935, 21264, 21440, 23922, 24120, 26580, 28352, 28944, 29681, 31896, 32160, 35440, 36180, 38592, 39870, 42528, 47844, 48240, 53160, 57888, 59362, 59805, 63792, 64320, 70880, 72360, 79740, 85056, 89043, 95688, 96480, 106320, 115776, 118724, 119610, 127584, 141760, 144720, 148405, 159480, 178086, 191376, 192960, 212640, 237448, 239220, 255168, 267129, 289440, 296810, 318960, 356172, 382752, 425280, 445215, 474896, 478440, 534258, 578880, 593620, 637920, 712344, 765504, 801387, 890430, 949792, 956880, 1068516, 1187240, 1275840, 1335645, 1424688, 1602774, 1780860, 1899584, 1913760, 2137032, 2374480, 2671290, 2849376, 3205548, 3561720, 3827520, 4006935, 4274064, 4748960, 5342580, 5698752, 6411096, 7123440, 8013870, 8548128, 9497920, 10685160, 12822192, 14246880, 16027740, 17096256, 21370320, 25644384, 28493760, 32055480, 42740640, 51288768, 64110960, 85481280, 128221920, 256443840]

約数ペア:

[(1, 256443840), (2, 128221920), (3, 85481280), (4, 64110960), (5, 51288768), (6, 42740640), (8, 32055480), (9, 28493760), (10, 25644384), (12, 21370320), (15, 17096256), (16, 16027740), (18, 14246880), (20, 12822192), (24, 10685160), (27, 9497920), (30, 8548128), (32, 8013870), (36, 7123440), (40, 6411096), (45, 5698752), (48, 5342580), (54, 4748960), (60, 4274064), (64, 4006935), (67, 3827520), (72, 3561720), (80, 3205548), (90, 2849376), (96, 2671290), (108, 2374480), (120, 2137032), (134, 1913760), (135, 1899584), (144, 1780860), (160, 1602774), (180, 1424688), (192, 1335645), (201, 1275840), (216, 1187240), (240, 1068516), (268, 956880), (270, 949792), (288, 890430), (320, 801387), (335, 765504), (360, 712344), (402, 637920), (432, 593620), (443, 578880), (480, 534258), (536, 478440), (540, 474896), (576, 445215), (603, 425280), (670, 382752), (720, 356172), (804, 318960), (864, 296810), (886, 289440), (960, 267129), (1005, 255168), (1072, 239220), (1080, 237448), (1206, 212640), (1329, 192960), (1340, 191376), (1440, 178086), (1608, 159480), (1728, 148405), (1772, 144720), (1809, 141760), (2010, 127584), (2144, 119610), (2160, 118724), (2215, 115776), (2412, 106320), (2658, 96480), (2680, 95688), (2880, 89043), (3015, 85056), (3216, 79740), (3544, 72360), (3618, 70880), (3987, 64320), (4020, 63792), (4288, 59805), (4320, 59362), (4430, 57888), (4824, 53160), (5316, 48240), (5360, 47844), (6030, 42528), (6432, 39870), (6645, 38592), (7088, 36180), (7236, 35440), (7974, 32160), (8040, 31896), (8640, 29681), (8860, 28944), (9045, 28352), (9648, 26580), (10632, 24120), (10720, 23922), (11961, 21440), (12060, 21264), (12864, 19935), (13290, 19296), (14176, 18090), (14472, 17720), (15948, 16080)]