256442544

素因数分解:

$2^4\times 3^3\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:392

約数の個数: 160

約数和(自身を含む): 783680000

約数和(自身を除く): 527237456

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 27, 36, 38, 48, 54, 57, 72, 76, 108, 114, 144, 152, 157, 171, 199, 216, 228, 304, 314, 342, 398, 432, 456, 471, 513, 597, 628, 684, 796, 912, 942, 1026, 1194, 1256, 1368, 1413, 1592, 1791, 1884, 2052, 2388, 2512, 2736, 2826, 2983, 3184, 3582, 3768, 3781, 4104, 4239, 4776, 5373, 5652, 5966, 7164, 7536, 7562, 8208, 8478, 8949, 9552, 10746, 11304, 11343, 11932, 14328, 15124, 16956, 17898, 21492, 22608, 22686, 23864, 26847, 28656, 30248, 31243, 33912, 34029, 35796, 42984, 45372, 47728, 53694, 60496, 62486, 67824, 68058, 71592, 80541, 85968, 90744, 93729, 102087, 107388, 124972, 136116, 143184, 161082, 181488, 187458, 204174, 214776, 249944, 272232, 281187, 322164, 374916, 408348, 429552, 499888, 544464, 562374, 593617, 644328, 749832, 816696, 843561, 1124748, 1187234, 1288656, 1499664, 1633392, 1687122, 1780851, 2249496, 2374468, 3374244, 3561702, 4498992, 4748936, 5342553, 6748488, 7123404, 9497872, 10685106, 13496976, 14246808, 16027659, 21370212, 28493616, 32055318, 42740424, 64110636, 85480848, 128221272, 256442544]

約数ペア:

[(1, 256442544), (2, 128221272), (3, 85480848), (4, 64110636), (6, 42740424), (8, 32055318), (9, 28493616), (12, 21370212), (16, 16027659), (18, 14246808), (19, 13496976), (24, 10685106), (27, 9497872), (36, 7123404), (38, 6748488), (48, 5342553), (54, 4748936), (57, 4498992), (72, 3561702), (76, 3374244), (108, 2374468), (114, 2249496), (144, 1780851), (152, 1687122), (157, 1633392), (171, 1499664), (199, 1288656), (216, 1187234), (228, 1124748), (304, 843561), (314, 816696), (342, 749832), (398, 644328), (432, 593617), (456, 562374), (471, 544464), (513, 499888), (597, 429552), (628, 408348), (684, 374916), (796, 322164), (912, 281187), (942, 272232), (1026, 249944), (1194, 214776), (1256, 204174), (1368, 187458), (1413, 181488), (1592, 161082), (1791, 143184), (1884, 136116), (2052, 124972), (2388, 107388), (2512, 102087), (2736, 93729), (2826, 90744), (2983, 85968), (3184, 80541), (3582, 71592), (3768, 68058), (3781, 67824), (4104, 62486), (4239, 60496), (4776, 53694), (5373, 47728), (5652, 45372), (5966, 42984), (7164, 35796), (7536, 34029), (7562, 33912), (8208, 31243), (8478, 30248), (8949, 28656), (9552, 26847), (10746, 23864), (11304, 22686), (11343, 22608), (11932, 21492), (14328, 17898), (15124, 16956)]