1234561905

素因数分解:

$3^4\times 5^1\times {\mathrm{3048301}}^1$

素因数の和:3048318

約数の個数: 20

約数和(自身を含む): 2213067252

約数和(自身を除く): 978505347

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 3048301, 9144903, 15241505, 27434709, 45724515, 82304127, 137173545, 246912381, 411520635, 1234561905]

約数ペア:

[(1, 1234561905), (3, 411520635), (5, 246912381), (9, 137173545), (15, 82304127), (27, 45724515), (45, 27434709), (81, 15241505), (135, 9144903), (405, 3048301)]