256179840

素因数分解:

$2^7\times 3^1\times 5^1\times 7^3\times {\mathrm{389}}^1$

素因数の和:432

約数の個数: 256

約数和(自身を含む): 954720000

約数和(自身を除く): 698540160

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, 389, 392, 420, 448, 480, 490, 560, 588, 640, 672, 686, 735, 778, 784, 840, 896, 960, 980, 1029, 1120, 1167, 1176, 1344, 1372, 1470, 1556, 1568, 1680, 1715, 1920, 1945, 1960, 2058, 2240, 2334, 2352, 2688, 2723, 2744, 2940, 3112, 3136, 3360, 3430, 3890, 3920, 4116, 4480, 4668, 4704, 5145, 5446, 5488, 5835, 5880, 6224, 6272, 6720, 6860, 7780, 7840, 8169, 8232, 9336, 9408, 10290, 10892, 10976, 11670, 11760, 12448, 13440, 13615, 13720, 15560, 15680, 16338, 16464, 18672, 18816, 19061, 20580, 21784, 21952, 23340, 23520, 24896, 27230, 27440, 31120, 31360, 32676, 32928, 37344, 38122, 40845, 41160, 43568, 43904, 46680, 47040, 49792, 54460, 54880, 57183, 62240, 65352, 65856, 74688, 76244, 81690, 82320, 87136, 93360, 94080, 95305, 108920, 109760, 114366, 124480, 130704, 131712, 133427, 149376, 152488, 163380, 164640, 174272, 186720, 190610, 217840, 219520, 228732, 248960, 261408, 266854, 285915, 304976, 326760, 329280, 348544, 373440, 381220, 400281, 435680, 457464, 522816, 533708, 571830, 609952, 653520, 658560, 667135, 746880, 762440, 800562, 871360, 914928, 1045632, 1067416, 1143660, 1219904, 1307040, 1334270, 1524880, 1601124, 1742720, 1829856, 2001405, 2134832, 2287320, 2439808, 2614080, 2668540, 3049760, 3202248, 3659712, 4002810, 4269664, 4574640, 5228160, 5337080, 6099520, 6404496, 7319424, 8005620, 8539328, 9149280, 10674160, 12199040, 12808992, 16011240, 17078656, 18298560, 21348320, 25617984, 32022480, 36597120, 42696640, 51235968, 64044960, 85393280, 128089920, 256179840]

約数ペア:

[(1, 256179840), (2, 128089920), (3, 85393280), (4, 64044960), (5, 51235968), (6, 42696640), (7, 36597120), (8, 32022480), (10, 25617984), (12, 21348320), (14, 18298560), (15, 17078656), (16, 16011240), (20, 12808992), (21, 12199040), (24, 10674160), (28, 9149280), (30, 8539328), (32, 8005620), (35, 7319424), (40, 6404496), (42, 6099520), (48, 5337080), (49, 5228160), (56, 4574640), (60, 4269664), (64, 4002810), (70, 3659712), (80, 3202248), (84, 3049760), (96, 2668540), (98, 2614080), (105, 2439808), (112, 2287320), (120, 2134832), (128, 2001405), (140, 1829856), (147, 1742720), (160, 1601124), (168, 1524880), (192, 1334270), (196, 1307040), (210, 1219904), (224, 1143660), (240, 1067416), (245, 1045632), (280, 914928), (294, 871360), (320, 800562), (336, 762440), (343, 746880), (384, 667135), (389, 658560), (392, 653520), (420, 609952), (448, 571830), (480, 533708), (490, 522816), (560, 457464), (588, 435680), (640, 400281), (672, 381220), (686, 373440), (735, 348544), (778, 329280), (784, 326760), (840, 304976), (896, 285915), (960, 266854), (980, 261408), (1029, 248960), (1120, 228732), (1167, 219520), (1176, 217840), (1344, 190610), (1372, 186720), (1470, 174272), (1556, 164640), (1568, 163380), (1680, 152488), (1715, 149376), (1920, 133427), (1945, 131712), (1960, 130704), (2058, 124480), (2240, 114366), (2334, 109760), (2352, 108920), (2688, 95305), (2723, 94080), (2744, 93360), (2940, 87136), (3112, 82320), (3136, 81690), (3360, 76244), (3430, 74688), (3890, 65856), (3920, 65352), (4116, 62240), (4480, 57183), (4668, 54880), (4704, 54460), (5145, 49792), (5446, 47040), (5488, 46680), (5835, 43904), (5880, 43568), (6224, 41160), (6272, 40845), (6720, 38122), (6860, 37344), (7780, 32928), (7840, 32676), (8169, 31360), (8232, 31120), (9336, 27440), (9408, 27230), (10290, 24896), (10892, 23520), (10976, 23340), (11670, 21952), (11760, 21784), (12448, 20580), (13440, 19061), (13615, 18816), (13720, 18672), (15560, 16464), (15680, 16338)]