255655480

素因数分解:

$2^3\times 5^1\times {\mathrm{6391387}}^1$

素因数の和:6391398

約数の個数: 16

約数和(自身を含む): 575224920

約数和(自身を除く): 319569440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 6391387, 12782774, 25565548, 31956935, 51131096, 63913870, 127827740, 255655480]

約数ペア:

[(1, 255655480), (2, 127827740), (4, 63913870), (5, 51131096), (8, 31956935), (10, 25565548), (20, 12782774), (40, 6391387)]