28005345

素因数分解:

$3^4\times 5^1\times {\mathrm{69149}}^1$

素因数の和:69166

約数の個数: 20

約数和(自身を含む): 50202900

約数和(自身を除く): 22197555

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 69149, 207447, 345745, 622341, 1037235, 1867023, 3111705, 5601069, 9335115, 28005345]

約数ペア:

[(1, 28005345), (3, 9335115), (5, 5601069), (9, 3111705), (15, 1867023), (27, 1037235), (45, 622341), (81, 345745), (135, 207447), (405, 69149)]