278749152

素因数分解:

$2^5\times 3^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:478

約数の個数: 216

約数和(自身を含む): 919343880

約数和(自身を除く): 640594728

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 19, 22, 24, 32, 33, 36, 38, 44, 48, 57, 66, 72, 76, 88, 96, 99, 114, 121, 132, 144, 152, 171, 176, 198, 209, 228, 242, 264, 288, 304, 342, 352, 363, 396, 418, 421, 456, 484, 528, 608, 627, 684, 726, 792, 836, 842, 912, 968, 1056, 1089, 1254, 1263, 1368, 1452, 1584, 1672, 1684, 1824, 1881, 1936, 2178, 2299, 2508, 2526, 2736, 2904, 3168, 3344, 3368, 3762, 3789, 3872, 4356, 4598, 4631, 5016, 5052, 5472, 5808, 6688, 6736, 6897, 7524, 7578, 7999, 8712, 9196, 9262, 10032, 10104, 11616, 13472, 13794, 13893, 15048, 15156, 15998, 17424, 18392, 18524, 20064, 20208, 20691, 23997, 27588, 27786, 30096, 30312, 31996, 34848, 36784, 37048, 40416, 41382, 41679, 47994, 50941, 55176, 55572, 60192, 60624, 63992, 71991, 73568, 74096, 82764, 83358, 87989, 95988, 101882, 110352, 111144, 121248, 127984, 143982, 148192, 152823, 165528, 166716, 175978, 191976, 203764, 220704, 222288, 255968, 263967, 287964, 305646, 331056, 333432, 351956, 383952, 407528, 444576, 458469, 527934, 575928, 611292, 662112, 666864, 703912, 767904, 791901, 815056, 916938, 967879, 1055868, 1151856, 1222584, 1333728, 1407824, 1583802, 1630112, 1833876, 1935758, 2111736, 2303712, 2445168, 2815648, 2903637, 3167604, 3667752, 3871516, 4223472, 4890336, 5807274, 6335208, 7335504, 7743032, 8446944, 8710911, 11614548, 12670416, 14671008, 15486064, 17421822, 23229096, 25340832, 30972128, 34843644, 46458192, 69687288, 92916384, 139374576, 278749152]

約数ペア:

[(1, 278749152), (2, 139374576), (3, 92916384), (4, 69687288), (6, 46458192), (8, 34843644), (9, 30972128), (11, 25340832), (12, 23229096), (16, 17421822), (18, 15486064), (19, 14671008), (22, 12670416), (24, 11614548), (32, 8710911), (33, 8446944), (36, 7743032), (38, 7335504), (44, 6335208), (48, 5807274), (57, 4890336), (66, 4223472), (72, 3871516), (76, 3667752), (88, 3167604), (96, 2903637), (99, 2815648), (114, 2445168), (121, 2303712), (132, 2111736), (144, 1935758), (152, 1833876), (171, 1630112), (176, 1583802), (198, 1407824), (209, 1333728), (228, 1222584), (242, 1151856), (264, 1055868), (288, 967879), (304, 916938), (342, 815056), (352, 791901), (363, 767904), (396, 703912), (418, 666864), (421, 662112), (456, 611292), (484, 575928), (528, 527934), (608, 458469), (627, 444576), (684, 407528), (726, 383952), (792, 351956), (836, 333432), (842, 331056), (912, 305646), (968, 287964), (1056, 263967), (1089, 255968), (1254, 222288), (1263, 220704), (1368, 203764), (1452, 191976), (1584, 175978), (1672, 166716), (1684, 165528), (1824, 152823), (1881, 148192), (1936, 143982), (2178, 127984), (2299, 121248), (2508, 111144), (2526, 110352), (2736, 101882), (2904, 95988), (3168, 87989), (3344, 83358), (3368, 82764), (3762, 74096), (3789, 73568), (3872, 71991), (4356, 63992), (4598, 60624), (4631, 60192), (5016, 55572), (5052, 55176), (5472, 50941), (5808, 47994), (6688, 41679), (6736, 41382), (6897, 40416), (7524, 37048), (7578, 36784), (7999, 34848), (8712, 31996), (9196, 30312), (9262, 30096), (10032, 27786), (10104, 27588), (11616, 23997), (13472, 20691), (13794, 20208), (13893, 20064), (15048, 18524), (15156, 18392), (15998, 17424)]