255380920

素因数分解:

$2^3\times 5^1\times {\mathrm{6384523}}^1$

素因数の和:6384534

約数の個数: 16

約数和(自身を含む): 574607160

約数和(自身を除く): 319226240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 6384523, 12769046, 25538092, 31922615, 51076184, 63845230, 127690460, 255380920]

約数ペア:

[(1, 255380920), (2, 127690460), (4, 63845230), (5, 51076184), (8, 31922615), (10, 25538092), (20, 12769046), (40, 6384523)]