686555280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{251}}^1$

素因数の和:430

約数の個数: 240

約数和(自身を含む): 2412970560

約数和(自身を除く): 1726415280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 36, 40, 45, 48, 58, 60, 72, 80, 87, 90, 116, 120, 131, 144, 145, 174, 180, 232, 240, 251, 261, 262, 290, 348, 360, 393, 435, 464, 502, 522, 524, 580, 655, 696, 720, 753, 786, 870, 1004, 1044, 1048, 1160, 1179, 1255, 1305, 1310, 1392, 1506, 1572, 1740, 1965, 2008, 2088, 2096, 2259, 2320, 2358, 2510, 2610, 2620, 3012, 3144, 3480, 3765, 3799, 3930, 4016, 4176, 4518, 4716, 5020, 5220, 5240, 5895, 6024, 6288, 6960, 7279, 7530, 7598, 7860, 9036, 9432, 10040, 10440, 10480, 11295, 11397, 11790, 12048, 14558, 15060, 15196, 15720, 18072, 18864, 18995, 20080, 20880, 21837, 22590, 22794, 23580, 29116, 30120, 30392, 31440, 32881, 34191, 36144, 36395, 37990, 43674, 45180, 45588, 47160, 56985, 58232, 60240, 60784, 65511, 65762, 68382, 72790, 75980, 87348, 90360, 91176, 94320, 98643, 109185, 113970, 116464, 131022, 131524, 136764, 145580, 151960, 164405, 170955, 174696, 180720, 182352, 197286, 218370, 227940, 262044, 263048, 273528, 291160, 295929, 303920, 327555, 328810, 341910, 349392, 394572, 436740, 455880, 493215, 524088, 526096, 547056, 582320, 591858, 655110, 657620, 683820, 789144, 873480, 911760, 953549, 986430, 1048176, 1183716, 1310220, 1315240, 1367640, 1479645, 1578288, 1746960, 1907098, 1972860, 2367432, 2620440, 2630480, 2735280, 2860647, 2959290, 3814196, 3945720, 4734864, 4767745, 5240880, 5721294, 5918580, 7628392, 7891440, 8581941, 9535490, 11442588, 11837160, 14303235, 15256784, 17163882, 19070980, 22885176, 23674320, 28606470, 34327764, 38141960, 42909705, 45770352, 57212940, 68655528, 76283920, 85819410, 114425880, 137311056, 171638820, 228851760, 343277640, 686555280]

約数ペア:

[(1, 686555280), (2, 343277640), (3, 228851760), (4, 171638820), (5, 137311056), (6, 114425880), (8, 85819410), (9, 76283920), (10, 68655528), (12, 57212940), (15, 45770352), (16, 42909705), (18, 38141960), (20, 34327764), (24, 28606470), (29, 23674320), (30, 22885176), (36, 19070980), (40, 17163882), (45, 15256784), (48, 14303235), (58, 11837160), (60, 11442588), (72, 9535490), (80, 8581941), (87, 7891440), (90, 7628392), (116, 5918580), (120, 5721294), (131, 5240880), (144, 4767745), (145, 4734864), (174, 3945720), (180, 3814196), (232, 2959290), (240, 2860647), (251, 2735280), (261, 2630480), (262, 2620440), (290, 2367432), (348, 1972860), (360, 1907098), (393, 1746960), (435, 1578288), (464, 1479645), (502, 1367640), (522, 1315240), (524, 1310220), (580, 1183716), (655, 1048176), (696, 986430), (720, 953549), (753, 911760), (786, 873480), (870, 789144), (1004, 683820), (1044, 657620), (1048, 655110), (1160, 591858), (1179, 582320), (1255, 547056), (1305, 526096), (1310, 524088), (1392, 493215), (1506, 455880), (1572, 436740), (1740, 394572), (1965, 349392), (2008, 341910), (2088, 328810), (2096, 327555), (2259, 303920), (2320, 295929), (2358, 291160), (2510, 273528), (2610, 263048), (2620, 262044), (3012, 227940), (3144, 218370), (3480, 197286), (3765, 182352), (3799, 180720), (3930, 174696), (4016, 170955), (4176, 164405), (4518, 151960), (4716, 145580), (5020, 136764), (5220, 131524), (5240, 131022), (5895, 116464), (6024, 113970), (6288, 109185), (6960, 98643), (7279, 94320), (7530, 91176), (7598, 90360), (7860, 87348), (9036, 75980), (9432, 72790), (10040, 68382), (10440, 65762), (10480, 65511), (11295, 60784), (11397, 60240), (11790, 58232), (12048, 56985), (14558, 47160), (15060, 45588), (15196, 45180), (15720, 43674), (18072, 37990), (18864, 36395), (18995, 36144), (20080, 34191), (20880, 32881), (21837, 31440), (22590, 30392), (22794, 30120), (23580, 29116)]