18804935690

素因数分解:

$2^1\times 5^1\times {\mathrm{2081}}^1\times {\mathrm{903649}}^1$

素因数の和:905737

約数の個数: 16

約数和(自身を含む): 33865187400

約数和(自身を除く): 15060251710

約数列:

[1, 2, 5, 10, 2081, 4162, 10405, 20810, 903649, 1807298, 4518245, 9036490, 1880493569, 3760987138, 9402467845, 18804935690]

約数ペア:

[(1, 18804935690), (2, 9402467845), (5, 3760987138), (10, 1880493569), (2081, 9036490), (4162, 4518245), (10405, 1807298), (20810, 903649)]