68440320

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{457}}^1$

素因数の和:497

約数の個数: 216

約数和(自身を含む): 255569496

約数和(自身を除く): 187129176

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 64, 65, 72, 78, 80, 90, 96, 104, 117, 120, 128, 130, 144, 156, 160, 180, 192, 195, 208, 234, 240, 256, 260, 288, 312, 320, 360, 384, 390, 416, 457, 468, 480, 520, 576, 585, 624, 640, 720, 768, 780, 832, 914, 936, 960, 1040, 1152, 1170, 1248, 1280, 1371, 1440, 1560, 1664, 1828, 1872, 1920, 2080, 2285, 2304, 2340, 2496, 2742, 2880, 3120, 3328, 3656, 3744, 3840, 4113, 4160, 4570, 4680, 4992, 5484, 5760, 5941, 6240, 6855, 7312, 7488, 8226, 8320, 9140, 9360, 9984, 10968, 11520, 11882, 12480, 13710, 14624, 14976, 16452, 16640, 17823, 18280, 18720, 20565, 21936, 23764, 24960, 27420, 29248, 29705, 29952, 32904, 35646, 36560, 37440, 41130, 43872, 47528, 49920, 53469, 54840, 58496, 59410, 65808, 71292, 73120, 74880, 82260, 87744, 89115, 95056, 106938, 109680, 116992, 118820, 131616, 142584, 146240, 149760, 164520, 175488, 178230, 190112, 213876, 219360, 237640, 263232, 267345, 285168, 292480, 329040, 350976, 356460, 380224, 427752, 438720, 475280, 526464, 534690, 570336, 584960, 658080, 712920, 760448, 855504, 877440, 950560, 1052928, 1069380, 1140672, 1316160, 1425840, 1520896, 1711008, 1754880, 1901120, 2138760, 2281344, 2632320, 2851680, 3422016, 3802240, 4277520, 4562688, 5264640, 5703360, 6844032, 7604480, 8555040, 11406720, 13688064, 17110080, 22813440, 34220160, 68440320]

約数ペア:

[(1, 68440320), (2, 34220160), (3, 22813440), (4, 17110080), (5, 13688064), (6, 11406720), (8, 8555040), (9, 7604480), (10, 6844032), (12, 5703360), (13, 5264640), (15, 4562688), (16, 4277520), (18, 3802240), (20, 3422016), (24, 2851680), (26, 2632320), (30, 2281344), (32, 2138760), (36, 1901120), (39, 1754880), (40, 1711008), (45, 1520896), (48, 1425840), (52, 1316160), (60, 1140672), (64, 1069380), (65, 1052928), (72, 950560), (78, 877440), (80, 855504), (90, 760448), (96, 712920), (104, 658080), (117, 584960), (120, 570336), (128, 534690), (130, 526464), (144, 475280), (156, 438720), (160, 427752), (180, 380224), (192, 356460), (195, 350976), (208, 329040), (234, 292480), (240, 285168), (256, 267345), (260, 263232), (288, 237640), (312, 219360), (320, 213876), (360, 190112), (384, 178230), (390, 175488), (416, 164520), (457, 149760), (468, 146240), (480, 142584), (520, 131616), (576, 118820), (585, 116992), (624, 109680), (640, 106938), (720, 95056), (768, 89115), (780, 87744), (832, 82260), (914, 74880), (936, 73120), (960, 71292), (1040, 65808), (1152, 59410), (1170, 58496), (1248, 54840), (1280, 53469), (1371, 49920), (1440, 47528), (1560, 43872), (1664, 41130), (1828, 37440), (1872, 36560), (1920, 35646), (2080, 32904), (2285, 29952), (2304, 29705), (2340, 29248), (2496, 27420), (2742, 24960), (2880, 23764), (3120, 21936), (3328, 20565), (3656, 18720), (3744, 18280), (3840, 17823), (4113, 16640), (4160, 16452), (4570, 14976), (4680, 14624), (4992, 13710), (5484, 12480), (5760, 11882), (5941, 11520), (6240, 10968), (6855, 9984), (7312, 9360), (7488, 9140), (8226, 8320)]