257912704

素因数分解:

$2^7\times 7^1\times {\mathrm{287849}}^1$

素因数の和:287870

約数の個数: 32

約数和(自身を含む): 587214000

約数和(自身を除く): 329301296

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 448, 896, 287849, 575698, 1151396, 2014943, 2302792, 4029886, 4605584, 8059772, 9211168, 16119544, 18422336, 32239088, 36844672, 64478176, 128956352, 257912704]

約数ペア:

[(1, 257912704), (2, 128956352), (4, 64478176), (7, 36844672), (8, 32239088), (14, 18422336), (16, 16119544), (28, 9211168), (32, 8059772), (56, 4605584), (64, 4029886), (112, 2302792), (128, 2014943), (224, 1151396), (448, 575698), (896, 287849)]