4128985

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{887}}^1$

素因数の和:925

約数の個数: 24

約数和(自身を含む): 6073920

約数和(自身を除く): 1944935

約数列:

[1, 5, 7, 19, 35, 49, 95, 133, 245, 665, 887, 931, 4435, 4655, 6209, 16853, 31045, 43463, 84265, 117971, 217315, 589855, 825797, 4128985]

約数ペア:

[(1, 4128985), (5, 825797), (7, 589855), (19, 217315), (35, 117971), (49, 84265), (95, 43463), (133, 31045), (245, 16853), (665, 6209), (887, 4655), (931, 4435)]