210020120

素因数分解:

$2^3\times 5^1\times {\mathrm{5250503}}^1$

素因数の和:5250514

約数の個数: 16

約数和(自身を含む): 472545360

約数和(自身を除く): 262525240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5250503, 10501006, 21002012, 26252515, 42004024, 52505030, 105010060, 210020120]

約数ペア:

[(1, 210020120), (2, 105010060), (4, 52505030), (5, 42004024), (8, 26252515), (10, 21002012), (20, 10501006), (40, 5250503)]