281185408

素因数分解:

$2^7\times 7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1$

素因数の和:322

約数の個数: 128

約数和(自身を含む): 685440000

約数和(自身を除く): 404254592

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 64, 76, 83, 112, 128, 133, 152, 166, 199, 224, 266, 304, 332, 398, 448, 532, 581, 608, 664, 796, 896, 1064, 1162, 1216, 1328, 1393, 1577, 1592, 2128, 2324, 2432, 2656, 2786, 3154, 3184, 3781, 4256, 4648, 5312, 5572, 6308, 6368, 7562, 8512, 9296, 10624, 11039, 11144, 12616, 12736, 15124, 16517, 17024, 18592, 22078, 22288, 25232, 25472, 26467, 30248, 33034, 37184, 44156, 44576, 50464, 52934, 60496, 66068, 74368, 88312, 89152, 100928, 105868, 115619, 120992, 132136, 176624, 178304, 201856, 211736, 231238, 241984, 264272, 313823, 353248, 423472, 462476, 483968, 528544, 627646, 706496, 846944, 924952, 1057088, 1255292, 1412992, 1693888, 1849904, 2114176, 2196761, 2510584, 3387776, 3699808, 4393522, 5021168, 7399616, 8787044, 10042336, 14799232, 17574088, 20084672, 35148176, 40169344, 70296352, 140592704, 281185408]

約数ペア:

[(1, 281185408), (2, 140592704), (4, 70296352), (7, 40169344), (8, 35148176), (14, 20084672), (16, 17574088), (19, 14799232), (28, 10042336), (32, 8787044), (38, 7399616), (56, 5021168), (64, 4393522), (76, 3699808), (83, 3387776), (112, 2510584), (128, 2196761), (133, 2114176), (152, 1849904), (166, 1693888), (199, 1412992), (224, 1255292), (266, 1057088), (304, 924952), (332, 846944), (398, 706496), (448, 627646), (532, 528544), (581, 483968), (608, 462476), (664, 423472), (796, 353248), (896, 313823), (1064, 264272), (1162, 241984), (1216, 231238), (1328, 211736), (1393, 201856), (1577, 178304), (1592, 176624), (2128, 132136), (2324, 120992), (2432, 115619), (2656, 105868), (2786, 100928), (3154, 89152), (3184, 88312), (3781, 74368), (4256, 66068), (4648, 60496), (5312, 52934), (5572, 50464), (6308, 44576), (6368, 44156), (7562, 37184), (8512, 33034), (9296, 30248), (10624, 26467), (11039, 25472), (11144, 25232), (12616, 22288), (12736, 22078), (15124, 18592), (16517, 17024)]