281205120

素因数分解:

$2^7\times 3^1\times 5^1\times 7^4\times {\mathrm{61}}^1$

素因数の和:111

約数の個数: 320

約数和(自身を含む): 1062811440

約数和(自身を除く): 781606320

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, 61, 64, 70, 80, 84, 96, 98, 105, 112, 120, 122, 128, 140, 147, 160, 168, 183, 192, 196, 210, 224, 240, 244, 245, 280, 294, 305, 320, 336, 343, 366, 384, 392, 420, 427, 448, 480, 488, 490, 560, 588, 610, 640, 672, 686, 732, 735, 784, 840, 854, 896, 915, 960, 976, 980, 1029, 1120, 1176, 1220, 1281, 1344, 1372, 1464, 1470, 1568, 1680, 1708, 1715, 1830, 1920, 1952, 1960, 2058, 2135, 2240, 2352, 2401, 2440, 2562, 2688, 2744, 2928, 2940, 2989, 3136, 3360, 3416, 3430, 3660, 3904, 3920, 4116, 4270, 4480, 4704, 4802, 4880, 5124, 5145, 5488, 5856, 5880, 5978, 6272, 6405, 6720, 6832, 6860, 7203, 7320, 7808, 7840, 8232, 8540, 8967, 9408, 9604, 9760, 10248, 10290, 10976, 11712, 11760, 11956, 12005, 12810, 13440, 13664, 13720, 14406, 14640, 14945, 15680, 16464, 17080, 17934, 18816, 19208, 19520, 20496, 20580, 20923, 21952, 23424, 23520, 23912, 24010, 25620, 27328, 27440, 28812, 29280, 29890, 31360, 32928, 34160, 35868, 36015, 38416, 39040, 40992, 41160, 41846, 43904, 44835, 47040, 47824, 48020, 51240, 54656, 54880, 57624, 58560, 59780, 62769, 65856, 68320, 71736, 72030, 76832, 81984, 82320, 83692, 89670, 94080, 95648, 96040, 102480, 104615, 109760, 115248, 117120, 119560, 125538, 131712, 136640, 143472, 144060, 146461, 153664, 163968, 164640, 167384, 179340, 191296, 192080, 204960, 209230, 219520, 230496, 239120, 251076, 273280, 286944, 288120, 292922, 307328, 313845, 329280, 334768, 358680, 382592, 384160, 409920, 418460, 439383, 460992, 478240, 502152, 573888, 576240, 585844, 627690, 658560, 669536, 717360, 732305, 768320, 819840, 836920, 878766, 921984, 956480, 1004304, 1147776, 1152480, 1171688, 1255380, 1339072, 1434720, 1464610, 1536640, 1673840, 1757532, 1912960, 2008608, 2196915, 2304960, 2343376, 2510760, 2678144, 2869440, 2929220, 3347680, 3515064, 4017216, 4393830, 4609920, 4686752, 5021520, 5738880, 5858440, 6695360, 7030128, 8034432, 8787660, 9373504, 10043040, 11716880, 13390720, 14060256, 17575320, 18747008, 20086080, 23433760, 28120512, 35150640, 40172160, 46867520, 56241024, 70301280, 93735040, 140602560, 281205120]

約数ペア:

[(1, 281205120), (2, 140602560), (3, 93735040), (4, 70301280), (5, 56241024), (6, 46867520), (7, 40172160), (8, 35150640), (10, 28120512), (12, 23433760), (14, 20086080), (15, 18747008), (16, 17575320), (20, 14060256), (21, 13390720), (24, 11716880), (28, 10043040), (30, 9373504), (32, 8787660), (35, 8034432), (40, 7030128), (42, 6695360), (48, 5858440), (49, 5738880), (56, 5021520), (60, 4686752), (61, 4609920), (64, 4393830), (70, 4017216), (80, 3515064), (84, 3347680), (96, 2929220), (98, 2869440), (105, 2678144), (112, 2510760), (120, 2343376), (122, 2304960), (128, 2196915), (140, 2008608), (147, 1912960), (160, 1757532), (168, 1673840), (183, 1536640), (192, 1464610), (196, 1434720), (210, 1339072), (224, 1255380), (240, 1171688), (244, 1152480), (245, 1147776), (280, 1004304), (294, 956480), (305, 921984), (320, 878766), (336, 836920), (343, 819840), (366, 768320), (384, 732305), (392, 717360), (420, 669536), (427, 658560), (448, 627690), (480, 585844), (488, 576240), (490, 573888), (560, 502152), (588, 478240), (610, 460992), (640, 439383), (672, 418460), (686, 409920), (732, 384160), (735, 382592), (784, 358680), (840, 334768), (854, 329280), (896, 313845), (915, 307328), (960, 292922), (976, 288120), (980, 286944), (1029, 273280), (1120, 251076), (1176, 239120), (1220, 230496), (1281, 219520), (1344, 209230), (1372, 204960), (1464, 192080), (1470, 191296), (1568, 179340), (1680, 167384), (1708, 164640), (1715, 163968), (1830, 153664), (1920, 146461), (1952, 144060), (1960, 143472), (2058, 136640), (2135, 131712), (2240, 125538), (2352, 119560), (2401, 117120), (2440, 115248), (2562, 109760), (2688, 104615), (2744, 102480), (2928, 96040), (2940, 95648), (2989, 94080), (3136, 89670), (3360, 83692), (3416, 82320), (3430, 81984), (3660, 76832), (3904, 72030), (3920, 71736), (4116, 68320), (4270, 65856), (4480, 62769), (4704, 59780), (4802, 58560), (4880, 57624), (5124, 54880), (5145, 54656), (5488, 51240), (5856, 48020), (5880, 47824), (5978, 47040), (6272, 44835), (6405, 43904), (6720, 41846), (6832, 41160), (6860, 40992), (7203, 39040), (7320, 38416), (7808, 36015), (7840, 35868), (8232, 34160), (8540, 32928), (8967, 31360), (9408, 29890), (9604, 29280), (9760, 28812), (10248, 27440), (10290, 27328), (10976, 25620), (11712, 24010), (11760, 23912), (11956, 23520), (12005, 23424), (12810, 21952), (13440, 20923), (13664, 20580), (13720, 20496), (14406, 19520), (14640, 19208), (14945, 18816), (15680, 17934), (16464, 17080)]