20996937280

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{1997}}^1$

素因数の和:2157

約数の個数: 224

約数和(自身を含む): 57001501440

約数和(自身を除く): 36004564160

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 32, 40, 44, 55, 58, 64, 80, 88, 103, 110, 116, 145, 160, 176, 206, 220, 232, 290, 319, 320, 352, 412, 440, 464, 515, 580, 638, 704, 824, 880, 928, 1030, 1133, 1160, 1276, 1595, 1648, 1760, 1856, 1997, 2060, 2266, 2320, 2552, 2987, 3190, 3296, 3520, 3994, 4120, 4532, 4640, 5104, 5665, 5974, 6380, 6592, 7988, 8240, 9064, 9280, 9985, 10208, 11330, 11948, 12760, 14935, 15976, 16480, 18128, 19970, 20416, 21967, 22660, 23896, 25520, 29870, 31952, 32857, 32960, 36256, 39940, 43934, 45320, 47792, 51040, 57913, 59740, 63904, 65714, 72512, 79880, 87868, 90640, 95584, 102080, 109835, 115826, 119480, 127808, 131428, 159760, 164285, 175736, 181280, 191168, 205691, 219670, 231652, 238960, 262856, 289565, 319520, 328570, 351472, 362560, 411382, 439340, 463304, 477920, 525712, 579130, 637043, 639040, 657140, 702944, 822764, 878680, 926608, 955840, 1028455, 1051424, 1158260, 1274086, 1314280, 1405888, 1645528, 1757360, 1853216, 2056910, 2102848, 2262601, 2316520, 2548172, 2628560, 3185215, 3291056, 3514720, 3706432, 4113820, 4525202, 4633040, 5096344, 5257120, 5965039, 6370430, 6582112, 7029440, 8227640, 9050404, 9266080, 10192688, 10514240, 11313005, 11930078, 12740860, 13164224, 16455280, 18100808, 18532160, 20385376, 22626010, 23860156, 25481720, 29825195, 32910560, 36201616, 40770752, 45252020, 47720312, 50963440, 59650390, 65615429, 65821120, 72403232, 90504040, 95440624, 101926880, 119300780, 131230858, 144806464, 181008080, 190881248, 203853760, 238601560, 262461716, 328077145, 362016160, 381762496, 477203120, 524923432, 656154290, 724032320, 954406240, 1049846864, 1312308580, 1908812480, 2099693728, 2624617160, 4199387456, 5249234320, 10498468640, 20996937280]

約数ペア:

[(1, 20996937280), (2, 10498468640), (4, 5249234320), (5, 4199387456), (8, 2624617160), (10, 2099693728), (11, 1908812480), (16, 1312308580), (20, 1049846864), (22, 954406240), (29, 724032320), (32, 656154290), (40, 524923432), (44, 477203120), (55, 381762496), (58, 362016160), (64, 328077145), (80, 262461716), (88, 238601560), (103, 203853760), (110, 190881248), (116, 181008080), (145, 144806464), (160, 131230858), (176, 119300780), (206, 101926880), (220, 95440624), (232, 90504040), (290, 72403232), (319, 65821120), (320, 65615429), (352, 59650390), (412, 50963440), (440, 47720312), (464, 45252020), (515, 40770752), (580, 36201616), (638, 32910560), (704, 29825195), (824, 25481720), (880, 23860156), (928, 22626010), (1030, 20385376), (1133, 18532160), (1160, 18100808), (1276, 16455280), (1595, 13164224), (1648, 12740860), (1760, 11930078), (1856, 11313005), (1997, 10514240), (2060, 10192688), (2266, 9266080), (2320, 9050404), (2552, 8227640), (2987, 7029440), (3190, 6582112), (3296, 6370430), (3520, 5965039), (3994, 5257120), (4120, 5096344), (4532, 4633040), (4640, 4525202), (5104, 4113820), (5665, 3706432), (5974, 3514720), (6380, 3291056), (6592, 3185215), (7988, 2628560), (8240, 2548172), (9064, 2316520), (9280, 2262601), (9985, 2102848), (10208, 2056910), (11330, 1853216), (11948, 1757360), (12760, 1645528), (14935, 1405888), (15976, 1314280), (16480, 1274086), (18128, 1158260), (19970, 1051424), (20416, 1028455), (21967, 955840), (22660, 926608), (23896, 878680), (25520, 822764), (29870, 702944), (31952, 657140), (32857, 639040), (32960, 637043), (36256, 579130), (39940, 525712), (43934, 477920), (45320, 463304), (47792, 439340), (51040, 411382), (57913, 362560), (59740, 351472), (63904, 328570), (65714, 319520), (72512, 289565), (79880, 262856), (87868, 238960), (90640, 231652), (95584, 219670), (102080, 205691), (109835, 191168), (115826, 181280), (119480, 175736), (127808, 164285), (131428, 159760)]