28700230

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{220771}}^1$

素因数の和:220791

約数の個数: 16

約数和(自身を含む): 55634544

約数和(自身を除く): 26934314

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 220771, 441542, 1103855, 2207710, 2870023, 5740046, 14350115, 28700230]

約数ペア:

[(1, 28700230), (2, 14350115), (5, 5740046), (10, 2870023), (13, 2207710), (26, 1103855), (65, 441542), (130, 220771)]