81999982320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{547}}^1\times {\mathrm{20149}}^1$

素因数の和:20743

約数の個数: 160

約数和(自身を含む): 262892697600

約数和(自身を除く): 180892715280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 547, 620, 744, 930, 1094, 1240, 1488, 1641, 1860, 2188, 2480, 2735, 3282, 3720, 4376, 5470, 6564, 7440, 8205, 8752, 10940, 13128, 16410, 16957, 20149, 21880, 26256, 32820, 33914, 40298, 43760, 50871, 60447, 65640, 67828, 80596, 84785, 100745, 101742, 120894, 131280, 135656, 161192, 169570, 201490, 203484, 241788, 254355, 271312, 302235, 322384, 339140, 402980, 406968, 483576, 508710, 604470, 624619, 678280, 805960, 813936, 967152, 1017420, 1208940, 1249238, 1356560, 1611920, 1873857, 2034840, 2417880, 2498476, 3123095, 3747714, 4069680, 4835760, 4996952, 6246190, 7495428, 9369285, 9993904, 11021503, 12492380, 14990856, 18738570, 22043006, 24984760, 29981712, 33064509, 37477140, 44086012, 49969520, 55107515, 66129018, 74954280, 88172024, 110215030, 132258036, 149908560, 165322545, 176344048, 220430060, 264516072, 330645090, 341666593, 440860120, 529032144, 661290180, 683333186, 881720240, 1024999779, 1322580360, 1366666372, 1708332965, 2049999558, 2645160720, 2733332744, 3416665930, 4099999116, 5124998895, 5466665488, 6833331860, 8199998232, 10249997790, 13666663720, 16399996464, 20499995580, 27333327440, 40999991160, 81999982320]

約数ペア:

[(1, 81999982320), (2, 40999991160), (3, 27333327440), (4, 20499995580), (5, 16399996464), (6, 13666663720), (8, 10249997790), (10, 8199998232), (12, 6833331860), (15, 5466665488), (16, 5124998895), (20, 4099999116), (24, 3416665930), (30, 2733332744), (31, 2645160720), (40, 2049999558), (48, 1708332965), (60, 1366666372), (62, 1322580360), (80, 1024999779), (93, 881720240), (120, 683333186), (124, 661290180), (155, 529032144), (186, 440860120), (240, 341666593), (248, 330645090), (310, 264516072), (372, 220430060), (465, 176344048), (496, 165322545), (547, 149908560), (620, 132258036), (744, 110215030), (930, 88172024), (1094, 74954280), (1240, 66129018), (1488, 55107515), (1641, 49969520), (1860, 44086012), (2188, 37477140), (2480, 33064509), (2735, 29981712), (3282, 24984760), (3720, 22043006), (4376, 18738570), (5470, 14990856), (6564, 12492380), (7440, 11021503), (8205, 9993904), (8752, 9369285), (10940, 7495428), (13128, 6246190), (16410, 4996952), (16957, 4835760), (20149, 4069680), (21880, 3747714), (26256, 3123095), (32820, 2498476), (33914, 2417880), (40298, 2034840), (43760, 1873857), (50871, 1611920), (60447, 1356560), (65640, 1249238), (67828, 1208940), (80596, 1017420), (84785, 967152), (100745, 813936), (101742, 805960), (120894, 678280), (131280, 624619), (135656, 604470), (161192, 508710), (169570, 483576), (201490, 406968), (203484, 402980), (241788, 339140), (254355, 322384), (271312, 302235)]