285440285

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{258317}}^1$

素因数の和:258352

約数の個数: 16

約数和(自身を含む): 390576816

約数和(自身を除く): 105136531

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 258317, 1291585, 3358121, 4391389, 16790605, 21956945, 57088057, 285440285]

約数ペア:

[(1, 285440285), (5, 57088057), (13, 21956945), (17, 16790605), (65, 4391389), (85, 3358121), (221, 1291585), (1105, 258317)]