12721291520

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{19997}}^1$

素因数の和:20096

約数の個数: 144

約数和(自身を含む): 35316787968

約数和(自身を除く): 22595496448

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 71, 80, 112, 128, 140, 142, 160, 224, 256, 280, 284, 320, 355, 448, 497, 560, 568, 640, 710, 896, 994, 1120, 1136, 1280, 1420, 1792, 1988, 2240, 2272, 2485, 2840, 3976, 4480, 4544, 4970, 5680, 7952, 8960, 9088, 9940, 11360, 15904, 18176, 19880, 19997, 22720, 31808, 39760, 39994, 45440, 63616, 79520, 79988, 90880, 99985, 127232, 139979, 159040, 159976, 199970, 279958, 318080, 319952, 399940, 559916, 636160, 639904, 699895, 799880, 1119832, 1279808, 1399790, 1419787, 1599760, 2239664, 2559616, 2799580, 2839574, 3199520, 4479328, 5119232, 5599160, 5679148, 6399040, 7098935, 8958656, 9938509, 11198320, 11358296, 12798080, 14197870, 17917312, 19877018, 22396640, 22716592, 25596160, 28395740, 35834624, 39754036, 44793280, 45433184, 49692545, 56791480, 79508072, 89586560, 90866368, 99385090, 113582960, 159016144, 179173120, 181732736, 198770180, 227165920, 318032288, 363465472, 397540360, 454331840, 636064576, 795080720, 908663680, 1272129152, 1590161440, 1817327360, 2544258304, 3180322880, 6360645760, 12721291520]

約数ペア:

[(1, 12721291520), (2, 6360645760), (4, 3180322880), (5, 2544258304), (7, 1817327360), (8, 1590161440), (10, 1272129152), (14, 908663680), (16, 795080720), (20, 636064576), (28, 454331840), (32, 397540360), (35, 363465472), (40, 318032288), (56, 227165920), (64, 198770180), (70, 181732736), (71, 179173120), (80, 159016144), (112, 113582960), (128, 99385090), (140, 90866368), (142, 89586560), (160, 79508072), (224, 56791480), (256, 49692545), (280, 45433184), (284, 44793280), (320, 39754036), (355, 35834624), (448, 28395740), (497, 25596160), (560, 22716592), (568, 22396640), (640, 19877018), (710, 17917312), (896, 14197870), (994, 12798080), (1120, 11358296), (1136, 11198320), (1280, 9938509), (1420, 8958656), (1792, 7098935), (1988, 6399040), (2240, 5679148), (2272, 5599160), (2485, 5119232), (2840, 4479328), (3976, 3199520), (4480, 2839574), (4544, 2799580), (4970, 2559616), (5680, 2239664), (7952, 1599760), (8960, 1419787), (9088, 1399790), (9940, 1279808), (11360, 1119832), (15904, 799880), (18176, 699895), (19880, 639904), (19997, 636160), (22720, 559916), (31808, 399940), (39760, 319952), (39994, 318080), (45440, 279958), (63616, 199970), (79520, 159976), (79988, 159040), (90880, 139979), (99985, 127232)]