261615744

素因数分解:

$2^7\times 3^5\times {\mathrm{13}}^1\times {\mathrm{647}}^1$

素因数の和:689

約数の個数: 192

約数和(自身を含む): 842063040

約数和(自身を除く): 580447296

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 32, 36, 39, 48, 52, 54, 64, 72, 78, 81, 96, 104, 108, 117, 128, 144, 156, 162, 192, 208, 216, 234, 243, 288, 312, 324, 351, 384, 416, 432, 468, 486, 576, 624, 647, 648, 702, 832, 864, 936, 972, 1053, 1152, 1248, 1294, 1296, 1404, 1664, 1728, 1872, 1941, 1944, 2106, 2496, 2588, 2592, 2808, 3159, 3456, 3744, 3882, 3888, 4212, 4992, 5176, 5184, 5616, 5823, 6318, 7488, 7764, 7776, 8411, 8424, 10352, 10368, 11232, 11646, 12636, 14976, 15528, 15552, 16822, 16848, 17469, 20704, 22464, 23292, 25233, 25272, 31056, 31104, 33644, 33696, 34938, 41408, 44928, 46584, 50466, 50544, 52407, 62112, 67288, 67392, 69876, 75699, 82816, 93168, 100932, 101088, 104814, 124224, 134576, 134784, 139752, 151398, 157221, 186336, 201864, 202176, 209628, 227097, 248448, 269152, 279504, 302796, 314442, 372672, 403728, 404352, 419256, 454194, 538304, 559008, 605592, 628884, 681291, 745344, 807456, 838512, 908388, 1076608, 1118016, 1211184, 1257768, 1362582, 1614912, 1677024, 1816776, 2043873, 2236032, 2422368, 2515536, 2725164, 3229824, 3354048, 3633552, 4087746, 4844736, 5031072, 5450328, 6708096, 7267104, 8175492, 9689472, 10062144, 10900656, 14534208, 16350984, 20124288, 21801312, 29068416, 32701968, 43602624, 65403936, 87205248, 130807872, 261615744]

約数ペア:

[(1, 261615744), (2, 130807872), (3, 87205248), (4, 65403936), (6, 43602624), (8, 32701968), (9, 29068416), (12, 21801312), (13, 20124288), (16, 16350984), (18, 14534208), (24, 10900656), (26, 10062144), (27, 9689472), (32, 8175492), (36, 7267104), (39, 6708096), (48, 5450328), (52, 5031072), (54, 4844736), (64, 4087746), (72, 3633552), (78, 3354048), (81, 3229824), (96, 2725164), (104, 2515536), (108, 2422368), (117, 2236032), (128, 2043873), (144, 1816776), (156, 1677024), (162, 1614912), (192, 1362582), (208, 1257768), (216, 1211184), (234, 1118016), (243, 1076608), (288, 908388), (312, 838512), (324, 807456), (351, 745344), (384, 681291), (416, 628884), (432, 605592), (468, 559008), (486, 538304), (576, 454194), (624, 419256), (647, 404352), (648, 403728), (702, 372672), (832, 314442), (864, 302796), (936, 279504), (972, 269152), (1053, 248448), (1152, 227097), (1248, 209628), (1294, 202176), (1296, 201864), (1404, 186336), (1664, 157221), (1728, 151398), (1872, 139752), (1941, 134784), (1944, 134576), (2106, 124224), (2496, 104814), (2588, 101088), (2592, 100932), (2808, 93168), (3159, 82816), (3456, 75699), (3744, 69876), (3882, 67392), (3888, 67288), (4212, 62112), (4992, 52407), (5176, 50544), (5184, 50466), (5616, 46584), (5823, 44928), (6318, 41408), (7488, 34938), (7764, 33696), (7776, 33644), (8411, 31104), (8424, 31056), (10352, 25272), (10368, 25233), (11232, 23292), (11646, 22464), (12636, 20704), (14976, 17469), (15528, 16848), (15552, 16822)]