257890304

素因数分解:

$2^{11}\times 7^1\times {\mathrm{17989}}^1$

素因数の和:18018

約数の個数: 48

約数和(自身を含む): 589352400

約数和(自身を除く): 331462096

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1024, 1792, 2048, 3584, 7168, 14336, 17989, 35978, 71956, 125923, 143912, 251846, 287824, 503692, 575648, 1007384, 1151296, 2014768, 2302592, 4029536, 4605184, 8059072, 9210368, 16118144, 18420736, 32236288, 36841472, 64472576, 128945152, 257890304]

約数ペア:

[(1, 257890304), (2, 128945152), (4, 64472576), (7, 36841472), (8, 32236288), (14, 18420736), (16, 16118144), (28, 9210368), (32, 8059072), (56, 4605184), (64, 4029536), (112, 2302592), (128, 2014768), (224, 1151296), (256, 1007384), (448, 575648), (512, 503692), (896, 287824), (1024, 251846), (1792, 143912), (2048, 125923), (3584, 71956), (7168, 35978), (14336, 17989)]