81311488

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{229}}^1$

素因数の和:337

約数の個数: 72

約数和(自身を含む): 173944400

約数和(自身を除く): 92632912

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 73, 76, 128, 146, 152, 229, 256, 292, 304, 458, 584, 608, 916, 1168, 1216, 1387, 1832, 2336, 2432, 2774, 3664, 4351, 4672, 4864, 5548, 7328, 8702, 9344, 11096, 14656, 16717, 17404, 18688, 22192, 29312, 33434, 34808, 44384, 58624, 66868, 69616, 88768, 133736, 139232, 177536, 267472, 278464, 317623, 355072, 534944, 556928, 635246, 1069888, 1113856, 1270492, 2139776, 2540984, 4279552, 5081968, 10163936, 20327872, 40655744, 81311488]

約数ペア:

[(1, 81311488), (2, 40655744), (4, 20327872), (8, 10163936), (16, 5081968), (19, 4279552), (32, 2540984), (38, 2139776), (64, 1270492), (73, 1113856), (76, 1069888), (128, 635246), (146, 556928), (152, 534944), (229, 355072), (256, 317623), (292, 278464), (304, 267472), (458, 177536), (584, 139232), (608, 133736), (916, 88768), (1168, 69616), (1216, 66868), (1387, 58624), (1832, 44384), (2336, 34808), (2432, 33434), (2774, 29312), (3664, 22192), (4351, 18688), (4672, 17404), (4864, 16717), (5548, 14656), (7328, 11096), (8702, 9344)]