12428905

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{223}}^1$

素因数の和:456

約数の個数: 16

約数和(自身を含む): 15289344

約数和(自身を除く): 2860439

約数列:

[1, 5, 71, 157, 223, 355, 785, 1115, 11147, 15833, 35011, 55735, 79165, 175055, 2485781, 12428905]

約数ペア:

[(1, 12428905), (5, 2485781), (71, 175055), (157, 79165), (223, 55735), (355, 35011), (785, 15833), (1115, 11147)]