90390455

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{2521}}^1$

素因数の和:2698

約数の個数: 16

約数和(自身を含む): 111129408

約数和(自身を除く): 20738953

約数列:

[1, 5, 71, 101, 355, 505, 2521, 7171, 12605, 35855, 178991, 254621, 894955, 1273105, 18078091, 90390455]

約数ペア:

[(1, 90390455), (5, 18078091), (71, 1273105), (101, 894955), (355, 254621), (505, 178991), (2521, 35855), (7171, 12605)]