25712235

素因数分解:

$3^4\times 5^1\times {\mathrm{63487}}^1$

素因数の和:63504

約数の個数: 20

約数和(自身を含む): 46092288

約数和(自身を除く): 20380053

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 63487, 190461, 317435, 571383, 952305, 1714149, 2856915, 5142447, 8570745, 25712235]

約数ペア:

[(1, 25712235), (3, 8570745), (5, 5142447), (9, 2856915), (15, 1714149), (27, 952305), (45, 571383), (81, 317435), (135, 190461), (405, 63487)]