25661205

素因数分解:

$3^4\times 5^1\times {\mathrm{63361}}^1$

素因数の和:63378

約数の個数: 20

約数和(自身を含む): 46000812

約数和(自身を除く): 20339607

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 63361, 190083, 316805, 570249, 950415, 1710747, 2851245, 5132241, 8553735, 25661205]

約数ペア:

[(1, 25661205), (3, 8553735), (5, 5132241), (9, 2851245), (15, 1710747), (27, 950415), (45, 570249), (81, 316805), (135, 190083), (405, 63361)]