205101315

素因数分解:

$3^4\times 5^1\times {\mathrm{506423}}^1$

素因数の和:506440

約数の個数: 20

約数和(自身を含む): 367663824

約数和(自身を除く): 162562509

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 506423, 1519269, 2532115, 4557807, 7596345, 13673421, 22789035, 41020263, 68367105, 205101315]

約数ペア:

[(1, 205101315), (3, 68367105), (5, 41020263), (9, 22789035), (15, 13673421), (27, 7596345), (45, 4557807), (81, 2532115), (135, 1519269), (405, 506423)]