2640288560

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{263}}^1$

素因数の和:500

約数の個数: 240

約数和(自身を含む): 7758628416

約数和(自身を除く): 5118339856

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 182, 196, 197, 208, 245, 260, 263, 280, 364, 392, 394, 455, 490, 520, 526, 560, 637, 728, 784, 788, 910, 980, 985, 1040, 1052, 1274, 1315, 1379, 1456, 1576, 1820, 1841, 1960, 1970, 2104, 2548, 2561, 2630, 2758, 3152, 3185, 3419, 3640, 3682, 3920, 3940, 4208, 5096, 5122, 5260, 5516, 6370, 6838, 6895, 7280, 7364, 7880, 9205, 9653, 10192, 10244, 10520, 11032, 12740, 12805, 12887, 13676, 13790, 14728, 15760, 17095, 17927, 18410, 19306, 20488, 21040, 22064, 23933, 25480, 25610, 25774, 27352, 27580, 29456, 34190, 35854, 36820, 38612, 40976, 47866, 48265, 50960, 51220, 51548, 51811, 54704, 55160, 64435, 68380, 71708, 73640, 77224, 89635, 95732, 96530, 102440, 103096, 103622, 110320, 119665, 125489, 128870, 136760, 143416, 147280, 154448, 167531, 179270, 191464, 193060, 204880, 206192, 207244, 239330, 250978, 257740, 259055, 273520, 286832, 335062, 358540, 362677, 382928, 386120, 414488, 478660, 501956, 515480, 518110, 627445, 670124, 673543, 717080, 725354, 772240, 828976, 837655, 957320, 1003912, 1030960, 1036220, 1254890, 1340248, 1347086, 1434160, 1450708, 1675310, 1813385, 1914640, 2007824, 2072440, 2509780, 2538739, 2680496, 2694172, 2901416, 3350620, 3367715, 3626770, 4144880, 4714801, 5019560, 5077478, 5388344, 5802832, 6701240, 6735430, 7253540, 9429602, 10039120, 10154956, 10776688, 12693695, 13402480, 13470860, 14507080, 18859204, 20309912, 23574005, 25387390, 26941720, 29014160, 33003607, 37718408, 40619824, 47148010, 50774780, 53883440, 66007214, 75436816, 94296020, 101549560, 132014428, 165018035, 188592040, 203099120, 264028856, 330036070, 377184080, 528057712, 660072140, 1320144280, 2640288560]

約数ペア:

[(1, 2640288560), (2, 1320144280), (4, 660072140), (5, 528057712), (7, 377184080), (8, 330036070), (10, 264028856), (13, 203099120), (14, 188592040), (16, 165018035), (20, 132014428), (26, 101549560), (28, 94296020), (35, 75436816), (40, 66007214), (49, 53883440), (52, 50774780), (56, 47148010), (65, 40619824), (70, 37718408), (80, 33003607), (91, 29014160), (98, 26941720), (104, 25387390), (112, 23574005), (130, 20309912), (140, 18859204), (182, 14507080), (196, 13470860), (197, 13402480), (208, 12693695), (245, 10776688), (260, 10154956), (263, 10039120), (280, 9429602), (364, 7253540), (392, 6735430), (394, 6701240), (455, 5802832), (490, 5388344), (520, 5077478), (526, 5019560), (560, 4714801), (637, 4144880), (728, 3626770), (784, 3367715), (788, 3350620), (910, 2901416), (980, 2694172), (985, 2680496), (1040, 2538739), (1052, 2509780), (1274, 2072440), (1315, 2007824), (1379, 1914640), (1456, 1813385), (1576, 1675310), (1820, 1450708), (1841, 1434160), (1960, 1347086), (1970, 1340248), (2104, 1254890), (2548, 1036220), (2561, 1030960), (2630, 1003912), (2758, 957320), (3152, 837655), (3185, 828976), (3419, 772240), (3640, 725354), (3682, 717080), (3920, 673543), (3940, 670124), (4208, 627445), (5096, 518110), (5122, 515480), (5260, 501956), (5516, 478660), (6370, 414488), (6838, 386120), (6895, 382928), (7280, 362677), (7364, 358540), (7880, 335062), (9205, 286832), (9653, 273520), (10192, 259055), (10244, 257740), (10520, 250978), (11032, 239330), (12740, 207244), (12805, 206192), (12887, 204880), (13676, 193060), (13790, 191464), (14728, 179270), (15760, 167531), (17095, 154448), (17927, 147280), (18410, 143416), (19306, 136760), (20488, 128870), (21040, 125489), (22064, 119665), (23933, 110320), (25480, 103622), (25610, 103096), (25774, 102440), (27352, 96530), (27580, 95732), (29456, 89635), (34190, 77224), (35854, 73640), (36820, 71708), (38612, 68380), (40976, 64435), (47866, 55160), (48265, 54704), (50960, 51811), (51220, 51548)]