18689280

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:212

約数の個数: 144

約数和(自身を含む): 62006784

約数和(自身を除く): 43317504

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 157, 160, 186, 192, 240, 248, 256, 310, 314, 320, 372, 384, 465, 471, 480, 496, 620, 628, 640, 744, 768, 785, 930, 942, 960, 992, 1240, 1256, 1280, 1488, 1570, 1860, 1884, 1920, 1984, 2355, 2480, 2512, 2976, 3140, 3720, 3768, 3840, 3968, 4710, 4867, 4960, 5024, 5952, 6280, 7440, 7536, 7936, 9420, 9734, 9920, 10048, 11904, 12560, 14601, 14880, 15072, 18840, 19468, 19840, 20096, 23808, 24335, 25120, 29202, 29760, 30144, 37680, 38936, 39680, 40192, 48670, 50240, 58404, 59520, 60288, 73005, 75360, 77872, 97340, 100480, 116808, 119040, 120576, 146010, 150720, 155744, 194680, 200960, 233616, 292020, 301440, 311488, 389360, 467232, 584040, 602880, 622976, 778720, 934464, 1168080, 1245952, 1557440, 1868928, 2336160, 3114880, 3737856, 4672320, 6229760, 9344640, 18689280]

約数ペア:

[(1, 18689280), (2, 9344640), (3, 6229760), (4, 4672320), (5, 3737856), (6, 3114880), (8, 2336160), (10, 1868928), (12, 1557440), (15, 1245952), (16, 1168080), (20, 934464), (24, 778720), (30, 622976), (31, 602880), (32, 584040), (40, 467232), (48, 389360), (60, 311488), (62, 301440), (64, 292020), (80, 233616), (93, 200960), (96, 194680), (120, 155744), (124, 150720), (128, 146010), (155, 120576), (157, 119040), (160, 116808), (186, 100480), (192, 97340), (240, 77872), (248, 75360), (256, 73005), (310, 60288), (314, 59520), (320, 58404), (372, 50240), (384, 48670), (465, 40192), (471, 39680), (480, 38936), (496, 37680), (620, 30144), (628, 29760), (640, 29202), (744, 25120), (768, 24335), (785, 23808), (930, 20096), (942, 19840), (960, 19468), (992, 18840), (1240, 15072), (1256, 14880), (1280, 14601), (1488, 12560), (1570, 11904), (1860, 10048), (1884, 9920), (1920, 9734), (1984, 9420), (2355, 7936), (2480, 7536), (2512, 7440), (2976, 6280), (3140, 5952), (3720, 5024), (3768, 4960), (3840, 4867), (3968, 4710)]