208075905

素因数分解:

$3^3\times 5^1\times {\mathrm{1541303}}^1$

素因数の和:1541317

約数の個数: 16

約数和(自身を含む): 369912960

約数和(自身を除く): 161837055

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1541303, 4623909, 7706515, 13871727, 23119545, 41615181, 69358635, 208075905]

約数ペア:

[(1, 208075905), (3, 69358635), (5, 41615181), (9, 23119545), (15, 13871727), (27, 7706515), (45, 4623909), (135, 1541303)]