408155

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:238

約数の個数: 16

約数和(自身を含む): 550368

約数和(自身を除く): 142213

約数列:

[1, 5, 11, 41, 55, 181, 205, 451, 905, 1991, 2255, 7421, 9955, 37105, 81631, 408155]

約数ペア:

[(1, 408155), (5, 81631), (11, 37105), (41, 9955), (55, 7421), (181, 2255), (205, 1991), (451, 905)]