257722560

素因数分解:

$2^6\times 3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:253

約数の個数: 280

約数和(自身を含む): 937509936

約数和(自身を除く): 679787376

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, 61, 64, 72, 80, 81, 90, 96, 108, 120, 122, 135, 144, 160, 162, 163, 180, 183, 192, 216, 240, 244, 270, 288, 305, 320, 324, 326, 360, 366, 405, 432, 480, 488, 489, 540, 549, 576, 610, 648, 652, 720, 732, 810, 815, 864, 915, 960, 976, 978, 1080, 1098, 1220, 1296, 1304, 1440, 1464, 1467, 1620, 1630, 1647, 1728, 1830, 1952, 1956, 2160, 2196, 2440, 2445, 2592, 2608, 2745, 2880, 2928, 2934, 3240, 3260, 3294, 3660, 3904, 3912, 4320, 4392, 4401, 4880, 4890, 4941, 5184, 5216, 5490, 5856, 5868, 6480, 6520, 6588, 7320, 7335, 7824, 8235, 8640, 8784, 8802, 9760, 9780, 9882, 9943, 10432, 10980, 11712, 11736, 12960, 13040, 13176, 13203, 14640, 14670, 15648, 16470, 17568, 17604, 19520, 19560, 19764, 19886, 21960, 22005, 23472, 24705, 25920, 26080, 26352, 26406, 29280, 29340, 29829, 31296, 32940, 35136, 35208, 39120, 39528, 39772, 43920, 44010, 46944, 49410, 49715, 52160, 52704, 52812, 58560, 58680, 59658, 65880, 66015, 70416, 78240, 79056, 79544, 87840, 88020, 89487, 93888, 98820, 99430, 105408, 105624, 117360, 119316, 131760, 132030, 140832, 149145, 156480, 158112, 159088, 175680, 176040, 178974, 197640, 198860, 211248, 234720, 238632, 263520, 264060, 268461, 281664, 298290, 316224, 318176, 352080, 357948, 395280, 397720, 422496, 447435, 469440, 477264, 527040, 528120, 536922, 596580, 636352, 704160, 715896, 790560, 795440, 805383, 844992, 894870, 954528, 1056240, 1073844, 1193160, 1342305, 1408320, 1431792, 1581120, 1590880, 1610766, 1789740, 1909056, 2112480, 2147688, 2386320, 2684610, 2863584, 3181760, 3221532, 3579480, 4026915, 4224960, 4295376, 4772640, 5369220, 5727168, 6443064, 7158960, 8053830, 8590752, 9545280, 10738440, 12886128, 14317920, 16107660, 17181504, 21476880, 25772256, 28635840, 32215320, 42953760, 51544512, 64430640, 85907520, 128861280, 257722560]

約数ペア:

[(1, 257722560), (2, 128861280), (3, 85907520), (4, 64430640), (5, 51544512), (6, 42953760), (8, 32215320), (9, 28635840), (10, 25772256), (12, 21476880), (15, 17181504), (16, 16107660), (18, 14317920), (20, 12886128), (24, 10738440), (27, 9545280), (30, 8590752), (32, 8053830), (36, 7158960), (40, 6443064), (45, 5727168), (48, 5369220), (54, 4772640), (60, 4295376), (61, 4224960), (64, 4026915), (72, 3579480), (80, 3221532), (81, 3181760), (90, 2863584), (96, 2684610), (108, 2386320), (120, 2147688), (122, 2112480), (135, 1909056), (144, 1789740), (160, 1610766), (162, 1590880), (163, 1581120), (180, 1431792), (183, 1408320), (192, 1342305), (216, 1193160), (240, 1073844), (244, 1056240), (270, 954528), (288, 894870), (305, 844992), (320, 805383), (324, 795440), (326, 790560), (360, 715896), (366, 704160), (405, 636352), (432, 596580), (480, 536922), (488, 528120), (489, 527040), (540, 477264), (549, 469440), (576, 447435), (610, 422496), (648, 397720), (652, 395280), (720, 357948), (732, 352080), (810, 318176), (815, 316224), (864, 298290), (915, 281664), (960, 268461), (976, 264060), (978, 263520), (1080, 238632), (1098, 234720), (1220, 211248), (1296, 198860), (1304, 197640), (1440, 178974), (1464, 176040), (1467, 175680), (1620, 159088), (1630, 158112), (1647, 156480), (1728, 149145), (1830, 140832), (1952, 132030), (1956, 131760), (2160, 119316), (2196, 117360), (2440, 105624), (2445, 105408), (2592, 99430), (2608, 98820), (2745, 93888), (2880, 89487), (2928, 88020), (2934, 87840), (3240, 79544), (3260, 79056), (3294, 78240), (3660, 70416), (3904, 66015), (3912, 65880), (4320, 59658), (4392, 58680), (4401, 58560), (4880, 52812), (4890, 52704), (4941, 52160), (5184, 49715), (5216, 49410), (5490, 46944), (5856, 44010), (5868, 43920), (6480, 39772), (6520, 39528), (6588, 39120), (7320, 35208), (7335, 35136), (7824, 32940), (8235, 31296), (8640, 29829), (8784, 29340), (8802, 29280), (9760, 26406), (9780, 26352), (9882, 26080), (9943, 25920), (10432, 24705), (10980, 23472), (11712, 22005), (11736, 21960), (12960, 19886), (13040, 19764), (13176, 19560), (13203, 19520), (14640, 17604), (14670, 17568), (15648, 16470)]