123920640

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{347}}^1$

素因数の和:405

約数の個数: 216

約数和(自身を含む): 443858688

約数和(自身を除く): 319938048

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, 558, 576, 620, 640, 694, 720, 744, 768, 930, 960, 992, 1041, 1116, 1152, 1240, 1280, 1388, 1395, 1440, 1488, 1735, 1860, 1920, 1984, 2082, 2232, 2304, 2480, 2776, 2790, 2880, 2976, 3123, 3470, 3720, 3840, 3968, 4164, 4464, 4960, 5205, 5552, 5580, 5760, 5952, 6246, 6940, 7440, 7936, 8328, 8928, 9920, 10410, 10757, 11104, 11160, 11520, 11904, 12492, 13880, 14880, 15615, 16656, 17856, 19840, 20820, 21514, 22208, 22320, 23808, 24984, 27760, 29760, 31230, 32271, 33312, 35712, 39680, 41640, 43028, 44416, 44640, 49968, 53785, 55520, 59520, 62460, 64542, 66624, 71424, 83280, 86056, 88832, 89280, 96813, 99936, 107570, 111040, 119040, 124920, 129084, 133248, 161355, 166560, 172112, 178560, 193626, 199872, 215140, 222080, 249840, 258168, 266496, 322710, 333120, 344224, 357120, 387252, 399744, 430280, 444160, 484065, 499680, 516336, 645420, 666240, 688448, 774504, 799488, 860560, 968130, 999360, 1032672, 1290840, 1332480, 1376896, 1549008, 1721120, 1936260, 1998720, 2065344, 2581680, 2753792, 3098016, 3442240, 3872520, 3997440, 4130688, 5163360, 6196032, 6884480, 7745040, 8261376, 10326720, 12392064, 13768960, 15490080, 20653440, 24784128, 30980160, 41306880, 61960320, 123920640]

約数ペア:

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