256299264

素因数分解:

$2^8\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:277

約数の個数: 216

約数和(自身を含む): 818417600

約数和(自身を除く): 562118336

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 43, 48, 52, 64, 72, 78, 86, 96, 104, 117, 128, 129, 144, 156, 172, 192, 199, 208, 234, 256, 258, 288, 312, 344, 384, 387, 398, 416, 468, 516, 559, 576, 597, 624, 688, 768, 774, 796, 832, 936, 1032, 1118, 1152, 1194, 1248, 1376, 1548, 1592, 1664, 1677, 1791, 1872, 2064, 2236, 2304, 2388, 2496, 2587, 2752, 3096, 3184, 3328, 3354, 3582, 3744, 4128, 4472, 4776, 4992, 5031, 5174, 5504, 6192, 6368, 6708, 7164, 7488, 7761, 8256, 8557, 8944, 9552, 9984, 10062, 10348, 11008, 12384, 12736, 13416, 14328, 14976, 15522, 16512, 17114, 17888, 19104, 20124, 20696, 23283, 24768, 25472, 25671, 26832, 28656, 29952, 31044, 33024, 34228, 35776, 38208, 40248, 41392, 46566, 49536, 50944, 51342, 53664, 57312, 62088, 68456, 71552, 76416, 77013, 80496, 82784, 93132, 99072, 102684, 107328, 111241, 114624, 124176, 136912, 143104, 152832, 154026, 160992, 165568, 186264, 205368, 214656, 222482, 229248, 248352, 273824, 308052, 321984, 331136, 333723, 372528, 410736, 429312, 444964, 458496, 496704, 547648, 616104, 643968, 662272, 667446, 745056, 821472, 889928, 993408, 1001169, 1095296, 1232208, 1287936, 1334892, 1490112, 1642944, 1779856, 1986816, 2002338, 2190592, 2464416, 2669784, 2980224, 3285888, 3559712, 4004676, 4928832, 5339568, 5960448, 6571776, 7119424, 8009352, 9857664, 10679136, 14238848, 16018704, 19715328, 21358272, 28477696, 32037408, 42716544, 64074816, 85433088, 128149632, 256299264]

約数ペア:

[(1, 256299264), (2, 128149632), (3, 85433088), (4, 64074816), (6, 42716544), (8, 32037408), (9, 28477696), (12, 21358272), (13, 19715328), (16, 16018704), (18, 14238848), (24, 10679136), (26, 9857664), (32, 8009352), (36, 7119424), (39, 6571776), (43, 5960448), (48, 5339568), (52, 4928832), (64, 4004676), (72, 3559712), (78, 3285888), (86, 2980224), (96, 2669784), (104, 2464416), (117, 2190592), (128, 2002338), (129, 1986816), (144, 1779856), (156, 1642944), (172, 1490112), (192, 1334892), (199, 1287936), (208, 1232208), (234, 1095296), (256, 1001169), (258, 993408), (288, 889928), (312, 821472), (344, 745056), (384, 667446), (387, 662272), (398, 643968), (416, 616104), (468, 547648), (516, 496704), (559, 458496), (576, 444964), (597, 429312), (624, 410736), (688, 372528), (768, 333723), (774, 331136), (796, 321984), (832, 308052), (936, 273824), (1032, 248352), (1118, 229248), (1152, 222482), (1194, 214656), (1248, 205368), (1376, 186264), (1548, 165568), (1592, 160992), (1664, 154026), (1677, 152832), (1791, 143104), (1872, 136912), (2064, 124176), (2236, 114624), (2304, 111241), (2388, 107328), (2496, 102684), (2587, 99072), (2752, 93132), (3096, 82784), (3184, 80496), (3328, 77013), (3354, 76416), (3582, 71552), (3744, 68456), (4128, 62088), (4472, 57312), (4776, 53664), (4992, 51342), (5031, 50944), (5174, 49536), (5504, 46566), (6192, 41392), (6368, 40248), (6708, 38208), (7164, 35776), (7488, 34228), (7761, 33024), (8256, 31044), (8557, 29952), (8944, 28656), (9552, 26832), (9984, 25671), (10062, 25472), (10348, 24768), (11008, 23283), (12384, 20696), (12736, 20124), (13416, 19104), (14328, 17888), (14976, 17114), (15522, 16512)]