638301670

素因数分解:

$2^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{324011}}^1$

素因数の和:324215

約数の個数: 16

約数和(自身を含む): 1154778768

約数和(自身を除く): 516477098

約数列:

[1, 2, 5, 10, 197, 394, 985, 1970, 324011, 648022, 1620055, 3240110, 63830167, 127660334, 319150835, 638301670]

約数ペア:

[(1, 638301670), (2, 319150835), (5, 127660334), (10, 63830167), (197, 3240110), (394, 1620055), (985, 648022), (1970, 324011)]