261649920

素因数分解:

$2^9\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:221

約数の個数: 320

約数和(自身を含む): 993079296

約数和(自身を除く): 731429376

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 32, 35, 40, 42, 48, 56, 60, 62, 64, 70, 80, 84, 93, 96, 105, 112, 120, 124, 128, 140, 155, 157, 160, 168, 186, 192, 210, 217, 224, 240, 248, 256, 280, 310, 314, 320, 336, 372, 384, 420, 434, 448, 465, 471, 480, 496, 512, 560, 620, 628, 640, 651, 672, 744, 768, 785, 840, 868, 896, 930, 942, 960, 992, 1085, 1099, 1120, 1240, 1256, 1280, 1302, 1344, 1488, 1536, 1570, 1680, 1736, 1792, 1860, 1884, 1920, 1984, 2170, 2198, 2240, 2355, 2480, 2512, 2560, 2604, 2688, 2976, 3140, 3255, 3297, 3360, 3472, 3584, 3720, 3768, 3840, 3968, 4340, 4396, 4480, 4710, 4867, 4960, 5024, 5208, 5376, 5495, 5952, 6280, 6510, 6594, 6720, 6944, 7440, 7536, 7680, 7936, 8680, 8792, 8960, 9420, 9734, 9920, 10048, 10416, 10752, 10990, 11904, 12560, 13020, 13188, 13440, 13888, 14601, 14880, 15072, 15872, 16485, 17360, 17584, 17920, 18840, 19468, 19840, 20096, 20832, 21980, 23808, 24335, 25120, 26040, 26376, 26880, 27776, 29202, 29760, 30144, 32970, 34069, 34720, 35168, 37680, 38936, 39680, 40192, 41664, 43960, 47616, 48670, 50240, 52080, 52752, 53760, 55552, 58404, 59520, 60288, 65940, 68138, 69440, 70336, 73005, 75360, 77872, 79360, 80384, 83328, 87920, 97340, 100480, 102207, 104160, 105504, 111104, 116808, 119040, 120576, 131880, 136276, 138880, 140672, 146010, 150720, 155744, 166656, 170345, 175840, 194680, 200960, 204414, 208320, 211008, 233616, 238080, 241152, 263760, 272552, 277760, 281344, 292020, 301440, 311488, 333312, 340690, 351680, 389360, 401920, 408828, 416640, 422016, 467232, 511035, 527520, 545104, 555520, 562688, 584040, 602880, 622976, 681380, 703360, 778720, 817656, 833280, 844032, 934464, 1022070, 1055040, 1090208, 1168080, 1205760, 1245952, 1362760, 1406720, 1557440, 1635312, 1666560, 1688064, 1868928, 2044140, 2110080, 2180416, 2336160, 2491904, 2725520, 2813440, 3114880, 3270624, 3737856, 4088280, 4220160, 4360832, 4672320, 5451040, 6229760, 6541248, 7475712, 8176560, 8440320, 8721664, 9344640, 10902080, 12459520, 13082496, 16353120, 17443328, 18689280, 21804160, 26164992, 32706240, 37378560, 43608320, 52329984, 65412480, 87216640, 130824960, 261649920]

約数ペア:

[(1, 261649920), (2, 130824960), (3, 87216640), (4, 65412480), (5, 52329984), (6, 43608320), (7, 37378560), (8, 32706240), (10, 26164992), (12, 21804160), (14, 18689280), (15, 17443328), (16, 16353120), (20, 13082496), (21, 12459520), (24, 10902080), (28, 9344640), (30, 8721664), (31, 8440320), (32, 8176560), (35, 7475712), (40, 6541248), (42, 6229760), (48, 5451040), (56, 4672320), (60, 4360832), (62, 4220160), (64, 4088280), (70, 3737856), (80, 3270624), (84, 3114880), (93, 2813440), (96, 2725520), (105, 2491904), (112, 2336160), (120, 2180416), (124, 2110080), (128, 2044140), (140, 1868928), (155, 1688064), (157, 1666560), (160, 1635312), (168, 1557440), (186, 1406720), (192, 1362760), (210, 1245952), (217, 1205760), (224, 1168080), (240, 1090208), (248, 1055040), (256, 1022070), (280, 934464), (310, 844032), (314, 833280), (320, 817656), (336, 778720), (372, 703360), (384, 681380), (420, 622976), (434, 602880), (448, 584040), (465, 562688), (471, 555520), (480, 545104), (496, 527520), (512, 511035), (560, 467232), (620, 422016), (628, 416640), (640, 408828), (651, 401920), (672, 389360), (744, 351680), (768, 340690), (785, 333312), (840, 311488), (868, 301440), (896, 292020), (930, 281344), (942, 277760), (960, 272552), (992, 263760), (1085, 241152), (1099, 238080), (1120, 233616), (1240, 211008), (1256, 208320), (1280, 204414), (1302, 200960), (1344, 194680), (1488, 175840), (1536, 170345), (1570, 166656), (1680, 155744), (1736, 150720), (1792, 146010), (1860, 140672), (1884, 138880), (1920, 136276), (1984, 131880), (2170, 120576), (2198, 119040), (2240, 116808), (2355, 111104), (2480, 105504), (2512, 104160), (2560, 102207), (2604, 100480), (2688, 97340), (2976, 87920), (3140, 83328), (3255, 80384), (3297, 79360), (3360, 77872), (3472, 75360), (3584, 73005), (3720, 70336), (3768, 69440), (3840, 68138), (3968, 65940), (4340, 60288), (4396, 59520), (4480, 58404), (4710, 55552), (4867, 53760), (4960, 52752), (5024, 52080), (5208, 50240), (5376, 48670), (5495, 47616), (5952, 43960), (6280, 41664), (6510, 40192), (6594, 39680), (6720, 38936), (6944, 37680), (7440, 35168), (7536, 34720), (7680, 34069), (7936, 32970), (8680, 30144), (8792, 29760), (8960, 29202), (9420, 27776), (9734, 26880), (9920, 26376), (10048, 26040), (10416, 25120), (10752, 24335), (10990, 23808), (11904, 21980), (12560, 20832), (13020, 20096), (13188, 19840), (13440, 19468), (13888, 18840), (14601, 17920), (14880, 17584), (15072, 17360), (15872, 16485)]