398252018

素因数分解:

$2^1\times {\mathrm{241}}^1\times {\mathrm{641}}^1\times {\mathrm{1289}}^1$

素因数の和:2173

約数の個数: 16

約数和(自身を含む): 601258680

約数和(自身を除く): 203006662

約数列:

[1, 2, 241, 482, 641, 1282, 1289, 2578, 154481, 308962, 310649, 621298, 826249, 1652498, 199126009, 398252018]

約数ペア:

[(1, 398252018), (2, 199126009), (241, 1652498), (482, 826249), (641, 621298), (1282, 310649), (1289, 308962), (2578, 154481)]