198445

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:132

約数の個数: 16

約数和(自身を含む): 266112

約数和(自身を除く): 67667

約数列:

[1, 5, 13, 43, 65, 71, 215, 355, 559, 923, 2795, 3053, 4615, 15265, 39689, 198445]

約数ペア:

[(1, 198445), (5, 39689), (13, 15265), (43, 4615), (65, 3053), (71, 2795), (215, 923), (355, 559)]