1981285920

素因数分解:

$2^5\times 3^5\times 5^1\times {\mathrm{131}}^1\times {\mathrm{389}}^1$

素因数の和:550

約数の個数: 288

約数和(自身を含む): 7083236160

約数和(自身を除く): 5101950240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 131, 135, 144, 160, 162, 180, 216, 240, 243, 262, 270, 288, 324, 360, 389, 393, 405, 432, 480, 486, 524, 540, 648, 655, 720, 778, 786, 810, 864, 972, 1048, 1080, 1167, 1179, 1215, 1296, 1310, 1440, 1556, 1572, 1620, 1944, 1945, 1965, 2096, 2160, 2334, 2358, 2430, 2592, 2620, 3112, 3144, 3240, 3501, 3537, 3888, 3890, 3930, 4192, 4320, 4668, 4716, 4860, 5240, 5835, 5895, 6224, 6288, 6480, 7002, 7074, 7776, 7780, 7860, 9336, 9432, 9720, 10480, 10503, 10611, 11670, 11790, 12448, 12576, 12960, 14004, 14148, 15560, 15720, 17505, 17685, 18672, 18864, 19440, 20960, 21006, 21222, 23340, 23580, 28008, 28296, 31120, 31440, 31509, 31833, 35010, 35370, 37344, 37728, 38880, 42012, 42444, 46680, 47160, 50959, 52515, 53055, 56016, 56592, 62240, 62880, 63018, 63666, 70020, 70740, 84024, 84888, 93360, 94320, 94527, 101918, 105030, 106110, 112032, 113184, 126036, 127332, 140040, 141480, 152877, 157545, 159165, 168048, 169776, 186720, 188640, 189054, 203836, 210060, 212220, 252072, 254664, 254795, 280080, 282960, 305754, 315090, 318330, 336096, 339552, 378108, 407672, 420120, 424440, 458631, 472635, 504144, 509328, 509590, 560160, 565920, 611508, 630180, 636660, 756216, 764385, 815344, 840240, 848880, 917262, 945270, 1008288, 1018656, 1019180, 1223016, 1260360, 1273320, 1375893, 1512432, 1528770, 1630688, 1680480, 1697760, 1834524, 1890540, 2038360, 2293155, 2446032, 2520720, 2546640, 2751786, 3024864, 3057540, 3669048, 3781080, 4076720, 4127679, 4586310, 4892064, 5041440, 5093280, 5503572, 6115080, 6879465, 7338096, 7562160, 8153440, 8255358, 9172620, 11007144, 12230160, 12383037, 13758930, 14676192, 15124320, 16510716, 18345240, 20638395, 22014288, 24460320, 24766074, 27517860, 33021432, 36690480, 41276790, 44028576, 49532148, 55035720, 61915185, 66042864, 73380960, 82553580, 99064296, 110071440, 123830370, 132085728, 165107160, 198128592, 220142880, 247660740, 330214320, 396257184, 495321480, 660428640, 990642960, 1981285920]

約数ペア:

[(1, 1981285920), (2, 990642960), (3, 660428640), (4, 495321480), (5, 396257184), (6, 330214320), (8, 247660740), (9, 220142880), (10, 198128592), (12, 165107160), (15, 132085728), (16, 123830370), (18, 110071440), (20, 99064296), (24, 82553580), (27, 73380960), (30, 66042864), (32, 61915185), (36, 55035720), (40, 49532148), (45, 44028576), (48, 41276790), (54, 36690480), (60, 33021432), (72, 27517860), (80, 24766074), (81, 24460320), (90, 22014288), (96, 20638395), (108, 18345240), (120, 16510716), (131, 15124320), (135, 14676192), (144, 13758930), (160, 12383037), (162, 12230160), (180, 11007144), (216, 9172620), (240, 8255358), (243, 8153440), (262, 7562160), (270, 7338096), (288, 6879465), (324, 6115080), (360, 5503572), (389, 5093280), (393, 5041440), (405, 4892064), (432, 4586310), (480, 4127679), (486, 4076720), (524, 3781080), (540, 3669048), (648, 3057540), (655, 3024864), (720, 2751786), (778, 2546640), (786, 2520720), (810, 2446032), (864, 2293155), (972, 2038360), (1048, 1890540), (1080, 1834524), (1167, 1697760), (1179, 1680480), (1215, 1630688), (1296, 1528770), (1310, 1512432), (1440, 1375893), (1556, 1273320), (1572, 1260360), (1620, 1223016), (1944, 1019180), (1945, 1018656), (1965, 1008288), (2096, 945270), (2160, 917262), (2334, 848880), (2358, 840240), (2430, 815344), (2592, 764385), (2620, 756216), (3112, 636660), (3144, 630180), (3240, 611508), (3501, 565920), (3537, 560160), (3888, 509590), (3890, 509328), (3930, 504144), (4192, 472635), (4320, 458631), (4668, 424440), (4716, 420120), (4860, 407672), (5240, 378108), (5835, 339552), (5895, 336096), (6224, 318330), (6288, 315090), (6480, 305754), (7002, 282960), (7074, 280080), (7776, 254795), (7780, 254664), (7860, 252072), (9336, 212220), (9432, 210060), (9720, 203836), (10480, 189054), (10503, 188640), (10611, 186720), (11670, 169776), (11790, 168048), (12448, 159165), (12576, 157545), (12960, 152877), (14004, 141480), (14148, 140040), (15560, 127332), (15720, 126036), (17505, 113184), (17685, 112032), (18672, 106110), (18864, 105030), (19440, 101918), (20960, 94527), (21006, 94320), (21222, 93360), (23340, 84888), (23580, 84024), (28008, 70740), (28296, 70020), (31120, 63666), (31440, 63018), (31509, 62880), (31833, 62240), (35010, 56592), (35370, 56016), (37344, 53055), (37728, 52515), (38880, 50959), (42012, 47160), (42444, 46680)]