1990609920

素因数分解:

$2^{10}\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3323}}^1$

素因数の和:3367

約数の個数: 264

約数和(自身を含む): 7430216976

約数和(自身を除く): 5439607056

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 64, 65, 72, 78, 80, 90, 96, 104, 117, 120, 128, 130, 144, 156, 160, 180, 192, 195, 208, 234, 240, 256, 260, 288, 312, 320, 360, 384, 390, 416, 468, 480, 512, 520, 576, 585, 624, 640, 720, 768, 780, 832, 936, 960, 1024, 1040, 1152, 1170, 1248, 1280, 1440, 1536, 1560, 1664, 1872, 1920, 2080, 2304, 2340, 2496, 2560, 2880, 3072, 3120, 3323, 3328, 3744, 3840, 4160, 4608, 4680, 4992, 5120, 5760, 6240, 6646, 6656, 7488, 7680, 8320, 9216, 9360, 9969, 9984, 11520, 12480, 13292, 13312, 14976, 15360, 16615, 16640, 18720, 19938, 19968, 23040, 24960, 26584, 29907, 29952, 33230, 33280, 37440, 39876, 39936, 43199, 46080, 49845, 49920, 53168, 59814, 59904, 66460, 66560, 74880, 79752, 86398, 99690, 99840, 106336, 119628, 119808, 129597, 132920, 149535, 149760, 159504, 172796, 199380, 199680, 212672, 215995, 239256, 259194, 265840, 299070, 299520, 319008, 345592, 388791, 398760, 425344, 431990, 478512, 518388, 531680, 598140, 599040, 638016, 647985, 691184, 777582, 797520, 850688, 863980, 957024, 1036776, 1063360, 1196280, 1276032, 1295970, 1382368, 1555164, 1595040, 1701376, 1727960, 1914048, 1943955, 2073552, 2126720, 2392560, 2552064, 2591940, 2764736, 3110328, 3190080, 3402752, 3455920, 3828096, 3887910, 4147104, 4253440, 4785120, 5104128, 5183880, 5529472, 6220656, 6380160, 6911840, 7656192, 7775820, 8294208, 8506880, 9570240, 10208256, 10367760, 11058944, 12441312, 12760320, 13823680, 15312384, 15551640, 16588416, 17013760, 19140480, 20735520, 22117888, 24882624, 25520640, 27647360, 30624768, 31103280, 33176832, 38280960, 41471040, 44235776, 49765248, 51041280, 55294720, 62206560, 66353664, 76561920, 82942080, 99530496, 110589440, 124413120, 132707328, 153123840, 165884160, 199060992, 221178880, 248826240, 331768320, 398121984, 497652480, 663536640, 995304960, 1990609920]

約数ペア:

[(1, 1990609920), (2, 995304960), (3, 663536640), (4, 497652480), (5, 398121984), (6, 331768320), (8, 248826240), (9, 221178880), (10, 199060992), (12, 165884160), (13, 153123840), (15, 132707328), (16, 124413120), (18, 110589440), (20, 99530496), (24, 82942080), (26, 76561920), (30, 66353664), (32, 62206560), (36, 55294720), (39, 51041280), (40, 49765248), (45, 44235776), (48, 41471040), (52, 38280960), (60, 33176832), (64, 31103280), (65, 30624768), (72, 27647360), (78, 25520640), (80, 24882624), (90, 22117888), (96, 20735520), (104, 19140480), (117, 17013760), (120, 16588416), (128, 15551640), (130, 15312384), (144, 13823680), (156, 12760320), (160, 12441312), (180, 11058944), (192, 10367760), (195, 10208256), (208, 9570240), (234, 8506880), (240, 8294208), (256, 7775820), (260, 7656192), (288, 6911840), (312, 6380160), (320, 6220656), (360, 5529472), (384, 5183880), (390, 5104128), (416, 4785120), (468, 4253440), (480, 4147104), (512, 3887910), (520, 3828096), (576, 3455920), (585, 3402752), (624, 3190080), (640, 3110328), (720, 2764736), (768, 2591940), (780, 2552064), (832, 2392560), (936, 2126720), (960, 2073552), (1024, 1943955), (1040, 1914048), (1152, 1727960), (1170, 1701376), (1248, 1595040), (1280, 1555164), (1440, 1382368), (1536, 1295970), (1560, 1276032), (1664, 1196280), (1872, 1063360), (1920, 1036776), (2080, 957024), (2304, 863980), (2340, 850688), (2496, 797520), (2560, 777582), (2880, 691184), (3072, 647985), (3120, 638016), (3323, 599040), (3328, 598140), (3744, 531680), (3840, 518388), (4160, 478512), (4608, 431990), (4680, 425344), (4992, 398760), (5120, 388791), (5760, 345592), (6240, 319008), (6646, 299520), (6656, 299070), (7488, 265840), (7680, 259194), (8320, 239256), (9216, 215995), (9360, 212672), (9969, 199680), (9984, 199380), (11520, 172796), (12480, 159504), (13292, 149760), (13312, 149535), (14976, 132920), (15360, 129597), (16615, 119808), (16640, 119628), (18720, 106336), (19938, 99840), (19968, 99690), (23040, 86398), (24960, 79752), (26584, 74880), (29907, 66560), (29952, 66460), (33230, 59904), (33280, 59814), (37440, 53168), (39876, 49920), (39936, 49845), (43199, 46080)]