256848480

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{307}}^1$

素因数の和:418

約数の個数: 288

約数和(自身を含む): 1017080064

約数和(自身を除く): 760231584

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 83, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 166, 168, 180, 210, 224, 240, 249, 252, 280, 288, 307, 315, 332, 336, 360, 415, 420, 480, 498, 504, 560, 581, 614, 630, 664, 672, 720, 747, 830, 840, 921, 996, 1008, 1120, 1162, 1228, 1245, 1260, 1328, 1440, 1494, 1535, 1660, 1680, 1743, 1842, 1992, 2016, 2149, 2324, 2456, 2490, 2520, 2656, 2763, 2905, 2988, 3070, 3320, 3360, 3486, 3684, 3735, 3984, 4298, 4605, 4648, 4912, 4980, 5040, 5229, 5526, 5810, 5976, 6140, 6447, 6640, 6972, 7368, 7470, 7968, 8596, 8715, 9210, 9296, 9824, 9960, 10080, 10458, 10745, 11052, 11620, 11952, 12280, 12894, 13280, 13815, 13944, 14736, 14940, 17192, 17430, 18420, 18592, 19341, 19920, 20916, 21490, 22104, 23240, 23904, 24560, 25481, 25788, 26145, 27630, 27888, 29472, 29880, 32235, 34384, 34860, 36840, 38682, 39840, 41832, 42980, 44208, 46480, 49120, 50962, 51576, 52290, 55260, 55776, 59760, 64470, 68768, 69720, 73680, 76443, 77364, 83664, 85960, 88416, 92960, 96705, 101924, 103152, 104580, 110520, 119520, 127405, 128940, 139440, 147360, 152886, 154728, 167328, 171920, 178367, 193410, 203848, 206304, 209160, 221040, 229329, 254810, 257880, 278880, 305772, 309456, 343840, 356734, 382215, 386820, 407696, 418320, 442080, 458658, 509620, 515760, 535101, 611544, 618912, 713468, 764430, 773640, 815392, 836640, 891835, 917316, 1019240, 1031520, 1070202, 1146645, 1223088, 1426936, 1528860, 1547280, 1605303, 1783670, 1834632, 2038480, 2140404, 2293290, 2446176, 2675505, 2853872, 3057720, 3094560, 3210606, 3567340, 3669264, 4076960, 4280808, 4586580, 5351010, 5707744, 6115440, 6421212, 7134680, 7338528, 8026515, 8561616, 9173160, 10702020, 12230880, 12842424, 14269360, 16053030, 17123232, 18346320, 21404040, 25684848, 28538720, 32106060, 36692640, 42808080, 51369696, 64212120, 85616160, 128424240, 256848480]

約数ペア:

[(1, 256848480), (2, 128424240), (3, 85616160), (4, 64212120), (5, 51369696), (6, 42808080), (7, 36692640), (8, 32106060), (9, 28538720), (10, 25684848), (12, 21404040), (14, 18346320), (15, 17123232), (16, 16053030), (18, 14269360), (20, 12842424), (21, 12230880), (24, 10702020), (28, 9173160), (30, 8561616), (32, 8026515), (35, 7338528), (36, 7134680), (40, 6421212), (42, 6115440), (45, 5707744), (48, 5351010), (56, 4586580), (60, 4280808), (63, 4076960), (70, 3669264), (72, 3567340), (80, 3210606), (83, 3094560), (84, 3057720), (90, 2853872), (96, 2675505), (105, 2446176), (112, 2293290), (120, 2140404), (126, 2038480), (140, 1834632), (144, 1783670), (160, 1605303), (166, 1547280), (168, 1528860), (180, 1426936), (210, 1223088), (224, 1146645), (240, 1070202), (249, 1031520), (252, 1019240), (280, 917316), (288, 891835), (307, 836640), (315, 815392), (332, 773640), (336, 764430), (360, 713468), (415, 618912), (420, 611544), (480, 535101), (498, 515760), (504, 509620), (560, 458658), (581, 442080), (614, 418320), (630, 407696), (664, 386820), (672, 382215), (720, 356734), (747, 343840), (830, 309456), (840, 305772), (921, 278880), (996, 257880), (1008, 254810), (1120, 229329), (1162, 221040), (1228, 209160), (1245, 206304), (1260, 203848), (1328, 193410), (1440, 178367), (1494, 171920), (1535, 167328), (1660, 154728), (1680, 152886), (1743, 147360), (1842, 139440), (1992, 128940), (2016, 127405), (2149, 119520), (2324, 110520), (2456, 104580), (2490, 103152), (2520, 101924), (2656, 96705), (2763, 92960), (2905, 88416), (2988, 85960), (3070, 83664), (3320, 77364), (3360, 76443), (3486, 73680), (3684, 69720), (3735, 68768), (3984, 64470), (4298, 59760), (4605, 55776), (4648, 55260), (4912, 52290), (4980, 51576), (5040, 50962), (5229, 49120), (5526, 46480), (5810, 44208), (5976, 42980), (6140, 41832), (6447, 39840), (6640, 38682), (6972, 36840), (7368, 34860), (7470, 34384), (7968, 32235), (8596, 29880), (8715, 29472), (9210, 27888), (9296, 27630), (9824, 26145), (9960, 25788), (10080, 25481), (10458, 24560), (10745, 23904), (11052, 23240), (11620, 22104), (11952, 21490), (12280, 20916), (12894, 19920), (13280, 19341), (13815, 18592), (13944, 18420), (14736, 17430), (14940, 17192)]