85090905

素因数分解:

$3^4\times 5^1\times {\mathrm{210101}}^1$

素因数の和:210118

約数の個数: 20

約数和(自身を含む): 152534052

約数和(自身を除く): 67443147

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 210101, 630303, 1050505, 1890909, 3151515, 5672727, 9454545, 17018181, 28363635, 85090905]

約数ペア:

[(1, 85090905), (3, 28363635), (5, 17018181), (9, 9454545), (15, 5672727), (27, 3151515), (45, 1890909), (81, 1050505), (135, 630303), (405, 210101)]