157707920

素因数分解:

$2^4\times 5^1\times {\mathrm{1971349}}^1$

素因数の和:1971362

約数の個数: 20

約数和(自身を含む): 366671100

約数和(自身を除く): 208963180

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1971349, 3942698, 7885396, 9856745, 15770792, 19713490, 31541584, 39426980, 78853960, 157707920]

約数ペア:

[(1, 157707920), (2, 78853960), (4, 39426980), (5, 31541584), (8, 19713490), (10, 15770792), (16, 9856745), (20, 7885396), (40, 3942698), (80, 1971349)]