257376008

素因数分解:

$2^3\times {\mathrm{263}}^1\times {\mathrm{122327}}^1$

素因数の和:122596

約数の個数: 16

約数和(自身を含む): 484418880

約数和(自身を除く): 227042872

約数列:

[1, 2, 4, 8, 263, 526, 1052, 2104, 122327, 244654, 489308, 978616, 32172001, 64344002, 128688004, 257376008]

約数ペア:

[(1, 257376008), (2, 128688004), (4, 64344002), (8, 32172001), (263, 978616), (526, 489308), (1052, 244654), (2104, 122327)]