261757984

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{7297}}^1$

素因数の和:7385

約数の個数: 48

約数和(自身を含む): 551728800

約数和(自身を除く): 289970816

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 59, 76, 118, 152, 236, 304, 472, 608, 944, 1121, 1888, 2242, 4484, 7297, 8968, 14594, 17936, 29188, 35872, 58376, 116752, 138643, 233504, 277286, 430523, 554572, 861046, 1109144, 1722092, 2218288, 3444184, 4436576, 6888368, 8179937, 13776736, 16359874, 32719748, 65439496, 130878992, 261757984]

約数ペア:

[(1, 261757984), (2, 130878992), (4, 65439496), (8, 32719748), (16, 16359874), (19, 13776736), (32, 8179937), (38, 6888368), (59, 4436576), (76, 3444184), (118, 2218288), (152, 1722092), (236, 1109144), (304, 861046), (472, 554572), (608, 430523), (944, 277286), (1121, 233504), (1888, 138643), (2242, 116752), (4484, 58376), (7297, 35872), (8968, 29188), (14594, 17936)]