68745040

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:130

約数の個数: 240

約数和(自身を含む): 213736320

約数和(自身を除く): 144991280

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 19, 20, 26, 28, 35, 38, 40, 49, 52, 56, 65, 70, 71, 76, 80, 91, 95, 98, 104, 112, 130, 133, 140, 142, 152, 182, 190, 196, 208, 245, 247, 260, 266, 280, 284, 304, 355, 364, 380, 392, 455, 490, 494, 497, 520, 532, 560, 568, 637, 665, 710, 728, 760, 784, 910, 923, 931, 980, 988, 994, 1040, 1064, 1136, 1235, 1274, 1330, 1349, 1420, 1456, 1520, 1729, 1820, 1846, 1862, 1960, 1976, 1988, 2128, 2470, 2485, 2548, 2660, 2698, 2840, 3185, 3458, 3479, 3640, 3692, 3724, 3920, 3952, 3976, 4615, 4655, 4940, 4970, 5096, 5320, 5396, 5680, 6370, 6461, 6745, 6916, 6958, 7280, 7384, 7448, 7952, 8645, 9230, 9310, 9443, 9880, 9940, 10192, 10640, 10792, 12103, 12740, 12922, 13490, 13832, 13916, 14768, 14896, 17290, 17395, 17537, 18460, 18620, 18886, 19760, 19880, 21584, 24206, 25480, 25844, 26980, 27664, 27832, 32305, 34580, 34790, 35074, 36920, 37240, 37772, 39760, 45227, 47215, 48412, 50960, 51688, 53960, 55664, 60515, 64610, 66101, 69160, 69580, 70148, 73840, 74480, 75544, 87685, 90454, 94430, 96824, 103376, 107920, 121030, 122759, 129220, 132202, 138320, 139160, 140296, 151088, 175370, 180908, 188860, 193648, 226135, 242060, 245518, 258440, 264404, 278320, 280592, 330505, 350740, 361816, 377720, 452270, 484120, 491036, 516880, 528808, 613795, 661010, 701480, 723632, 755440, 859313, 904540, 968240, 982072, 1057616, 1227590, 1322020, 1402960, 1718626, 1809080, 1964144, 2455180, 2644040, 3437252, 3618160, 4296565, 4910360, 5288080, 6874504, 8593130, 9820720, 13749008, 17186260, 34372520, 68745040]

約数ペア:

[(1, 68745040), (2, 34372520), (4, 17186260), (5, 13749008), (7, 9820720), (8, 8593130), (10, 6874504), (13, 5288080), (14, 4910360), (16, 4296565), (19, 3618160), (20, 3437252), (26, 2644040), (28, 2455180), (35, 1964144), (38, 1809080), (40, 1718626), (49, 1402960), (52, 1322020), (56, 1227590), (65, 1057616), (70, 982072), (71, 968240), (76, 904540), (80, 859313), (91, 755440), (95, 723632), (98, 701480), (104, 661010), (112, 613795), (130, 528808), (133, 516880), (140, 491036), (142, 484120), (152, 452270), (182, 377720), (190, 361816), (196, 350740), (208, 330505), (245, 280592), (247, 278320), (260, 264404), (266, 258440), (280, 245518), (284, 242060), (304, 226135), (355, 193648), (364, 188860), (380, 180908), (392, 175370), (455, 151088), (490, 140296), (494, 139160), (497, 138320), (520, 132202), (532, 129220), (560, 122759), (568, 121030), (637, 107920), (665, 103376), (710, 96824), (728, 94430), (760, 90454), (784, 87685), (910, 75544), (923, 74480), (931, 73840), (980, 70148), (988, 69580), (994, 69160), (1040, 66101), (1064, 64610), (1136, 60515), (1235, 55664), (1274, 53960), (1330, 51688), (1349, 50960), (1420, 48412), (1456, 47215), (1520, 45227), (1729, 39760), (1820, 37772), (1846, 37240), (1862, 36920), (1960, 35074), (1976, 34790), (1988, 34580), (2128, 32305), (2470, 27832), (2485, 27664), (2548, 26980), (2660, 25844), (2698, 25480), (2840, 24206), (3185, 21584), (3458, 19880), (3479, 19760), (3640, 18886), (3692, 18620), (3724, 18460), (3920, 17537), (3952, 17395), (3976, 17290), (4615, 14896), (4655, 14768), (4940, 13916), (4970, 13832), (5096, 13490), (5320, 12922), (5396, 12740), (5680, 12103), (6370, 10792), (6461, 10640), (6745, 10192), (6916, 9940), (6958, 9880), (7280, 9443), (7384, 9310), (7448, 9230), (7952, 8645)]