256989105

素因数分解:

$3^4\times 5^1\times {\mathrm{634541}}^1$

素因数の和:634558

約数の個数: 20

約数和(自身を含む): 460677492

約数和(自身を除く): 203688387

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 634541, 1903623, 3172705, 5710869, 9518115, 17132607, 28554345, 51397821, 85663035, 256989105]

約数ペア:

[(1, 256989105), (3, 85663035), (5, 51397821), (9, 28554345), (15, 17132607), (27, 9518115), (45, 5710869), (81, 3172705), (135, 1903623), (405, 634541)]