639342720

素因数分解:

$2^7\times 3^5\times 5^1\times {\mathrm{4111}}^1$

素因数の和:4145

約数の個数: 192

約数和(自身を含む): 2290055040

約数和(自身を除く): 1650712320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 243, 270, 288, 320, 324, 360, 384, 405, 432, 480, 486, 540, 576, 640, 648, 720, 810, 864, 960, 972, 1080, 1152, 1215, 1296, 1440, 1620, 1728, 1920, 1944, 2160, 2430, 2592, 2880, 3240, 3456, 3888, 4111, 4320, 4860, 5184, 5760, 6480, 7776, 8222, 8640, 9720, 10368, 12333, 12960, 15552, 16444, 17280, 19440, 20555, 24666, 25920, 31104, 32888, 36999, 38880, 41110, 49332, 51840, 61665, 65776, 73998, 77760, 82220, 98664, 110997, 123330, 131552, 147996, 155520, 164440, 184995, 197328, 221994, 246660, 263104, 295992, 328880, 332991, 369990, 394656, 443988, 493320, 526208, 554985, 591984, 657760, 665982, 739980, 789312, 887976, 986640, 998973, 1109970, 1183968, 1315520, 1331964, 1479960, 1578624, 1664955, 1775952, 1973280, 1997946, 2219940, 2367936, 2631040, 2663928, 2959920, 3329910, 3551904, 3946560, 3995892, 4439880, 4735872, 4994865, 5327856, 5919840, 6659820, 7103808, 7893120, 7991784, 8879760, 9989730, 10655712, 11839680, 13319640, 14207616, 15983568, 17759520, 19979460, 21311424, 23679360, 26639280, 31967136, 35519040, 39958920, 42622848, 53278560, 63934272, 71038080, 79917840, 106557120, 127868544, 159835680, 213114240, 319671360, 639342720]

約数ペア:

[(1, 639342720), (2, 319671360), (3, 213114240), (4, 159835680), (5, 127868544), (6, 106557120), (8, 79917840), (9, 71038080), (10, 63934272), (12, 53278560), (15, 42622848), (16, 39958920), (18, 35519040), (20, 31967136), (24, 26639280), (27, 23679360), (30, 21311424), (32, 19979460), (36, 17759520), (40, 15983568), (45, 14207616), (48, 13319640), (54, 11839680), (60, 10655712), (64, 9989730), (72, 8879760), (80, 7991784), (81, 7893120), (90, 7103808), (96, 6659820), (108, 5919840), (120, 5327856), (128, 4994865), (135, 4735872), (144, 4439880), (160, 3995892), (162, 3946560), (180, 3551904), (192, 3329910), (216, 2959920), (240, 2663928), (243, 2631040), (270, 2367936), (288, 2219940), (320, 1997946), (324, 1973280), (360, 1775952), (384, 1664955), (405, 1578624), (432, 1479960), (480, 1331964), (486, 1315520), (540, 1183968), (576, 1109970), (640, 998973), (648, 986640), (720, 887976), (810, 789312), (864, 739980), (960, 665982), (972, 657760), (1080, 591984), (1152, 554985), (1215, 526208), (1296, 493320), (1440, 443988), (1620, 394656), (1728, 369990), (1920, 332991), (1944, 328880), (2160, 295992), (2430, 263104), (2592, 246660), (2880, 221994), (3240, 197328), (3456, 184995), (3888, 164440), (4111, 155520), (4320, 147996), (4860, 131552), (5184, 123330), (5760, 110997), (6480, 98664), (7776, 82220), (8222, 77760), (8640, 73998), (9720, 65776), (10368, 61665), (12333, 51840), (12960, 49332), (15552, 41110), (16444, 38880), (17280, 36999), (19440, 32888), (20555, 31104), (24666, 25920)]