210725145

素因数分解:

$3^4\times 5^1\times {\mathrm{520309}}^1$

素因数の和:520326

約数の個数: 20

約数和(自身を含む): 377745060

約数和(自身を除く): 167019915

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 520309, 1560927, 2601545, 4682781, 7804635, 14048343, 23413905, 42145029, 70241715, 210725145]

約数ペア:

[(1, 210725145), (3, 70241715), (5, 42145029), (9, 23413905), (15, 14048343), (27, 7804635), (45, 4682781), (81, 2601545), (135, 1560927), (405, 520309)]