247841280

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{347}}^1$

素因数の和:407

約数の個数: 240

約数和(自身を含む): 888585984

約数和(自身を除く): 640744704

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 64, 72, 80, 90, 93, 96, 120, 124, 128, 144, 155, 160, 180, 186, 192, 240, 248, 256, 279, 288, 310, 320, 347, 360, 372, 384, 465, 480, 496, 512, 558, 576, 620, 640, 694, 720, 744, 768, 930, 960, 992, 1041, 1116, 1152, 1240, 1280, 1388, 1395, 1440, 1488, 1536, 1735, 1860, 1920, 1984, 2082, 2232, 2304, 2480, 2560, 2776, 2790, 2880, 2976, 3123, 3470, 3720, 3840, 3968, 4164, 4464, 4608, 4960, 5205, 5552, 5580, 5760, 5952, 6246, 6940, 7440, 7680, 7936, 8328, 8928, 9920, 10410, 10757, 11104, 11160, 11520, 11904, 12492, 13880, 14880, 15615, 15872, 16656, 17856, 19840, 20820, 21514, 22208, 22320, 23040, 23808, 24984, 27760, 29760, 31230, 32271, 33312, 35712, 39680, 41640, 43028, 44416, 44640, 47616, 49968, 53785, 55520, 59520, 62460, 64542, 66624, 71424, 79360, 83280, 86056, 88832, 89280, 96813, 99936, 107570, 111040, 119040, 124920, 129084, 133248, 142848, 161355, 166560, 172112, 177664, 178560, 193626, 199872, 215140, 222080, 238080, 249840, 258168, 266496, 322710, 333120, 344224, 357120, 387252, 399744, 430280, 444160, 484065, 499680, 516336, 532992, 645420, 666240, 688448, 714240, 774504, 799488, 860560, 888320, 968130, 999360, 1032672, 1290840, 1332480, 1376896, 1549008, 1598976, 1721120, 1936260, 1998720, 2065344, 2581680, 2664960, 2753792, 3098016, 3442240, 3872520, 3997440, 4130688, 5163360, 5507584, 6196032, 6884480, 7745040, 7994880, 8261376, 10326720, 12392064, 13768960, 15490080, 16522752, 20653440, 24784128, 27537920, 30980160, 41306880, 49568256, 61960320, 82613760, 123920640, 247841280]

約数ペア:

[(1, 247841280), (2, 123920640), (3, 82613760), (4, 61960320), (5, 49568256), (6, 41306880), (8, 30980160), (9, 27537920), (10, 24784128), (12, 20653440), (15, 16522752), (16, 15490080), (18, 13768960), (20, 12392064), (24, 10326720), (30, 8261376), (31, 7994880), (32, 7745040), (36, 6884480), (40, 6196032), (45, 5507584), (48, 5163360), (60, 4130688), (62, 3997440), (64, 3872520), (72, 3442240), (80, 3098016), (90, 2753792), (93, 2664960), (96, 2581680), (120, 2065344), (124, 1998720), (128, 1936260), (144, 1721120), (155, 1598976), (160, 1549008), (180, 1376896), (186, 1332480), (192, 1290840), (240, 1032672), (248, 999360), (256, 968130), (279, 888320), (288, 860560), (310, 799488), (320, 774504), (347, 714240), (360, 688448), (372, 666240), (384, 645420), (465, 532992), (480, 516336), (496, 499680), (512, 484065), (558, 444160), (576, 430280), (620, 399744), (640, 387252), (694, 357120), (720, 344224), (744, 333120), (768, 322710), (930, 266496), (960, 258168), (992, 249840), (1041, 238080), (1116, 222080), (1152, 215140), (1240, 199872), (1280, 193626), (1388, 178560), (1395, 177664), (1440, 172112), (1488, 166560), (1536, 161355), (1735, 142848), (1860, 133248), (1920, 129084), (1984, 124920), (2082, 119040), (2232, 111040), (2304, 107570), (2480, 99936), (2560, 96813), (2776, 89280), (2790, 88832), (2880, 86056), (2976, 83280), (3123, 79360), (3470, 71424), (3720, 66624), (3840, 64542), (3968, 62460), (4164, 59520), (4464, 55520), (4608, 53785), (4960, 49968), (5205, 47616), (5552, 44640), (5580, 44416), (5760, 43028), (5952, 41640), (6246, 39680), (6940, 35712), (7440, 33312), (7680, 32271), (7936, 31230), (8328, 29760), (8928, 27760), (9920, 24984), (10410, 23808), (10757, 23040), (11104, 22320), (11160, 22208), (11520, 21514), (11904, 20820), (12492, 19840), (13880, 17856), (14880, 16656), (15615, 15872)]