20090230

素因数分解:

$2^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{3947}}^1$

素因数の和:4463

約数の個数: 16

約数和(自身を含む): 36242640

約数和(自身を除く): 16152410

約数列:

[1, 2, 5, 10, 509, 1018, 2545, 3947, 5090, 7894, 19735, 39470, 2009023, 4018046, 10045115, 20090230]

約数ペア:

[(1, 20090230), (2, 10045115), (5, 4018046), (10, 2009023), (509, 39470), (1018, 19735), (2545, 7894), (3947, 5090)]