256605888

素因数分解:

$2^6\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1021}}^1$

素因数の和:1071

約数の個数: 224

約数和(自身を含む): 897136128

約数和(自身を除く): 640530240

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 16, 17, 21, 22, 24, 28, 32, 33, 34, 42, 44, 48, 51, 56, 64, 66, 68, 77, 84, 88, 96, 102, 112, 119, 132, 136, 154, 168, 176, 187, 192, 204, 224, 231, 238, 264, 272, 308, 336, 352, 357, 374, 408, 448, 462, 476, 528, 544, 561, 616, 672, 704, 714, 748, 816, 924, 952, 1021, 1056, 1088, 1122, 1232, 1309, 1344, 1428, 1496, 1632, 1848, 1904, 2042, 2112, 2244, 2464, 2618, 2856, 2992, 3063, 3264, 3696, 3808, 3927, 4084, 4488, 4928, 5236, 5712, 5984, 6126, 7147, 7392, 7616, 7854, 8168, 8976, 10472, 11231, 11424, 11968, 12252, 14294, 14784, 15708, 16336, 17357, 17952, 20944, 21441, 22462, 22848, 24504, 28588, 31416, 32672, 33693, 34714, 35904, 41888, 42882, 44924, 49008, 52071, 57176, 62832, 65344, 67386, 69428, 78617, 83776, 85764, 89848, 98016, 104142, 114352, 121499, 125664, 134772, 138856, 157234, 171528, 179696, 190927, 196032, 208284, 228704, 235851, 242998, 251328, 269544, 277712, 314468, 343056, 359392, 364497, 381854, 416568, 457408, 471702, 485996, 539088, 555424, 572781, 628936, 686112, 718784, 728994, 763708, 833136, 943404, 971992, 1078176, 1110848, 1145562, 1257872, 1336489, 1372224, 1457988, 1527416, 1666272, 1886808, 1943984, 2156352, 2291124, 2515744, 2672978, 2915976, 3054832, 3332544, 3773616, 3887968, 4009467, 4582248, 5031488, 5345956, 5831952, 6109664, 7547232, 7775936, 8018934, 9164496, 10691912, 11663904, 12219328, 15094464, 16037868, 18328992, 21383824, 23327808, 32075736, 36657984, 42767648, 64151472, 85535296, 128302944, 256605888]

約数ペア:

[(1, 256605888), (2, 128302944), (3, 85535296), (4, 64151472), (6, 42767648), (7, 36657984), (8, 32075736), (11, 23327808), (12, 21383824), (14, 18328992), (16, 16037868), (17, 15094464), (21, 12219328), (22, 11663904), (24, 10691912), (28, 9164496), (32, 8018934), (33, 7775936), (34, 7547232), (42, 6109664), (44, 5831952), (48, 5345956), (51, 5031488), (56, 4582248), (64, 4009467), (66, 3887968), (68, 3773616), (77, 3332544), (84, 3054832), (88, 2915976), (96, 2672978), (102, 2515744), (112, 2291124), (119, 2156352), (132, 1943984), (136, 1886808), (154, 1666272), (168, 1527416), (176, 1457988), (187, 1372224), (192, 1336489), (204, 1257872), (224, 1145562), (231, 1110848), (238, 1078176), (264, 971992), (272, 943404), (308, 833136), (336, 763708), (352, 728994), (357, 718784), (374, 686112), (408, 628936), (448, 572781), (462, 555424), (476, 539088), (528, 485996), (544, 471702), (561, 457408), (616, 416568), (672, 381854), (704, 364497), (714, 359392), (748, 343056), (816, 314468), (924, 277712), (952, 269544), (1021, 251328), (1056, 242998), (1088, 235851), (1122, 228704), (1232, 208284), (1309, 196032), (1344, 190927), (1428, 179696), (1496, 171528), (1632, 157234), (1848, 138856), (1904, 134772), (2042, 125664), (2112, 121499), (2244, 114352), (2464, 104142), (2618, 98016), (2856, 89848), (2992, 85764), (3063, 83776), (3264, 78617), (3696, 69428), (3808, 67386), (3927, 65344), (4084, 62832), (4488, 57176), (4928, 52071), (5236, 49008), (5712, 44924), (5984, 42882), (6126, 41888), (7147, 35904), (7392, 34714), (7616, 33693), (7854, 32672), (8168, 31416), (8976, 28588), (10472, 24504), (11231, 22848), (11424, 22462), (11968, 21441), (12252, 20944), (14294, 17952), (14784, 17357), (15708, 16336)]