69952005

素因数分解:

$3^4\times 5^1\times {\mathrm{172721}}^1$

素因数の和:172738

約数の個数: 20

約数和(自身を含む): 125396172

約数和(自身を除く): 55444167

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 172721, 518163, 863605, 1554489, 2590815, 4663467, 7772445, 13990401, 23317335, 69952005]

約数ペア:

[(1, 69952005), (3, 23317335), (5, 13990401), (9, 7772445), (15, 4663467), (27, 2590815), (45, 1554489), (81, 863605), (135, 518163), (405, 172721)]