1998512640

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{683}}^1$

素因数の和:839

約数の個数: 240

約数和(自身を含む): 6986124288

約数和(自身を除く): 4987611648

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 127, 128, 144, 160, 180, 192, 240, 254, 256, 288, 320, 360, 381, 384, 480, 508, 512, 576, 635, 640, 683, 720, 762, 768, 960, 1016, 1143, 1152, 1270, 1280, 1366, 1440, 1524, 1536, 1905, 1920, 2032, 2049, 2286, 2304, 2540, 2560, 2732, 2880, 3048, 3415, 3810, 3840, 4064, 4098, 4572, 4608, 5080, 5464, 5715, 5760, 6096, 6147, 6830, 7620, 7680, 8128, 8196, 9144, 10160, 10245, 10928, 11430, 11520, 12192, 12294, 13660, 15240, 16256, 16392, 18288, 20320, 20490, 21856, 22860, 23040, 24384, 24588, 27320, 30480, 30735, 32512, 32784, 36576, 40640, 40980, 43712, 45720, 48768, 49176, 54640, 60960, 61470, 65024, 65568, 73152, 81280, 81960, 86741, 87424, 91440, 97536, 98352, 109280, 121920, 122940, 131136, 146304, 162560, 163920, 173482, 174848, 182880, 195072, 196704, 218560, 243840, 245880, 260223, 262272, 292608, 325120, 327840, 346964, 349696, 365760, 393408, 433705, 437120, 487680, 491760, 520446, 524544, 585216, 655680, 693928, 731520, 780669, 786816, 867410, 874240, 975360, 983520, 1040892, 1049088, 1301115, 1311360, 1387856, 1463040, 1561338, 1573632, 1734820, 1748480, 1967040, 2081784, 2602230, 2622720, 2775712, 2926080, 3122676, 3147264, 3469640, 3903345, 3934080, 4163568, 5204460, 5245440, 5551424, 6245352, 6939280, 7806690, 7868160, 8327136, 10408920, 11102848, 12490704, 13878560, 15613380, 15736320, 16654272, 20817840, 22205696, 24981408, 27757120, 31226760, 33308544, 41635680, 44411392, 49962816, 55514240, 62453520, 66617088, 83271360, 99925632, 111028480, 124907040, 133234176, 166542720, 199851264, 222056960, 249814080, 333085440, 399702528, 499628160, 666170880, 999256320, 1998512640]

約数ペア:

[(1, 1998512640), (2, 999256320), (3, 666170880), (4, 499628160), (5, 399702528), (6, 333085440), (8, 249814080), (9, 222056960), (10, 199851264), (12, 166542720), (15, 133234176), (16, 124907040), (18, 111028480), (20, 99925632), (24, 83271360), (30, 66617088), (32, 62453520), (36, 55514240), (40, 49962816), (45, 44411392), (48, 41635680), (60, 33308544), (64, 31226760), (72, 27757120), (80, 24981408), (90, 22205696), (96, 20817840), (120, 16654272), (127, 15736320), (128, 15613380), (144, 13878560), (160, 12490704), (180, 11102848), (192, 10408920), (240, 8327136), (254, 7868160), (256, 7806690), (288, 6939280), (320, 6245352), (360, 5551424), (381, 5245440), (384, 5204460), (480, 4163568), (508, 3934080), (512, 3903345), (576, 3469640), (635, 3147264), (640, 3122676), (683, 2926080), (720, 2775712), (762, 2622720), (768, 2602230), (960, 2081784), (1016, 1967040), (1143, 1748480), (1152, 1734820), (1270, 1573632), (1280, 1561338), (1366, 1463040), (1440, 1387856), (1524, 1311360), (1536, 1301115), (1905, 1049088), (1920, 1040892), (2032, 983520), (2049, 975360), (2286, 874240), (2304, 867410), (2540, 786816), (2560, 780669), (2732, 731520), (2880, 693928), (3048, 655680), (3415, 585216), (3810, 524544), (3840, 520446), (4064, 491760), (4098, 487680), (4572, 437120), (4608, 433705), (5080, 393408), (5464, 365760), (5715, 349696), (5760, 346964), (6096, 327840), (6147, 325120), (6830, 292608), (7620, 262272), (7680, 260223), (8128, 245880), (8196, 243840), (9144, 218560), (10160, 196704), (10245, 195072), (10928, 182880), (11430, 174848), (11520, 173482), (12192, 163920), (12294, 162560), (13660, 146304), (15240, 131136), (16256, 122940), (16392, 121920), (18288, 109280), (20320, 98352), (20490, 97536), (21856, 91440), (22860, 87424), (23040, 86741), (24384, 81960), (24588, 81280), (27320, 73152), (30480, 65568), (30735, 65024), (32512, 61470), (32784, 60960), (36576, 54640), (40640, 49176), (40980, 48768), (43712, 45720)]