1999837120

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:243

約数の個数: 224

約数和(自身を含む): 5214274560

約数和(自身を除く): 3214437440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 43, 46, 64, 71, 80, 86, 89, 92, 115, 142, 160, 172, 178, 184, 215, 230, 284, 320, 344, 355, 356, 368, 430, 445, 460, 568, 688, 710, 712, 736, 860, 890, 920, 989, 1136, 1376, 1420, 1424, 1472, 1633, 1720, 1780, 1840, 1978, 2047, 2272, 2752, 2840, 2848, 3053, 3266, 3440, 3560, 3680, 3827, 3956, 4094, 4544, 4945, 5680, 5696, 6106, 6319, 6532, 6880, 7120, 7360, 7654, 7912, 8165, 8188, 9890, 10235, 11360, 12212, 12638, 13064, 13760, 14240, 15265, 15308, 15824, 16330, 16376, 19135, 19780, 20470, 22720, 24424, 25276, 26128, 28480, 30530, 30616, 31595, 31648, 32660, 32752, 38270, 39560, 40940, 48848, 50552, 52256, 61060, 61232, 63190, 63296, 65320, 65504, 70219, 76540, 79120, 81880, 88021, 97696, 101104, 104512, 122120, 122464, 126380, 130640, 131008, 140438, 145337, 153080, 158240, 163760, 176042, 195392, 202208, 244240, 244928, 252760, 261280, 271717, 280876, 290674, 306160, 316480, 327520, 351095, 352084, 404416, 440105, 488480, 505520, 522560, 543434, 561752, 581348, 612320, 655040, 702190, 704168, 726685, 880210, 976960, 1011040, 1086868, 1123504, 1162696, 1224640, 1358585, 1404380, 1408336, 1453370, 1760420, 2022080, 2173736, 2247008, 2325392, 2717170, 2808760, 2816672, 2906740, 3520840, 4347472, 4494016, 4650784, 5434340, 5617520, 5633344, 5813480, 6249491, 7041680, 8694944, 9301568, 10868680, 11235040, 11626960, 12498982, 14083360, 17389888, 21737360, 22470080, 23253920, 24997964, 28166720, 31247455, 43474720, 46507840, 49995928, 62494910, 86949440, 99991856, 124989820, 199983712, 249979640, 399967424, 499959280, 999918560, 1999837120]

約数ペア:

[(1, 1999837120), (2, 999918560), (4, 499959280), (5, 399967424), (8, 249979640), (10, 199983712), (16, 124989820), (20, 99991856), (23, 86949440), (32, 62494910), (40, 49995928), (43, 46507840), (46, 43474720), (64, 31247455), (71, 28166720), (80, 24997964), (86, 23253920), (89, 22470080), (92, 21737360), (115, 17389888), (142, 14083360), (160, 12498982), (172, 11626960), (178, 11235040), (184, 10868680), (215, 9301568), (230, 8694944), (284, 7041680), (320, 6249491), (344, 5813480), (355, 5633344), (356, 5617520), (368, 5434340), (430, 4650784), (445, 4494016), (460, 4347472), (568, 3520840), (688, 2906740), (710, 2816672), (712, 2808760), (736, 2717170), (860, 2325392), (890, 2247008), (920, 2173736), (989, 2022080), (1136, 1760420), (1376, 1453370), (1420, 1408336), (1424, 1404380), (1472, 1358585), (1633, 1224640), (1720, 1162696), (1780, 1123504), (1840, 1086868), (1978, 1011040), (2047, 976960), (2272, 880210), (2752, 726685), (2840, 704168), (2848, 702190), (3053, 655040), (3266, 612320), (3440, 581348), (3560, 561752), (3680, 543434), (3827, 522560), (3956, 505520), (4094, 488480), (4544, 440105), (4945, 404416), (5680, 352084), (5696, 351095), (6106, 327520), (6319, 316480), (6532, 306160), (6880, 290674), (7120, 280876), (7360, 271717), (7654, 261280), (7912, 252760), (8165, 244928), (8188, 244240), (9890, 202208), (10235, 195392), (11360, 176042), (12212, 163760), (12638, 158240), (13064, 153080), (13760, 145337), (14240, 140438), (15265, 131008), (15308, 130640), (15824, 126380), (16330, 122464), (16376, 122120), (19135, 104512), (19780, 101104), (20470, 97696), (22720, 88021), (24424, 81880), (25276, 79120), (26128, 76540), (28480, 70219), (30530, 65504), (30616, 65320), (31595, 63296), (31648, 63190), (32660, 61232), (32752, 61060), (38270, 52256), (39560, 50552), (40940, 48848)]