90720385

素因数分解:

$5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{35507}}^1$

素因数の和:35592

約数の個数: 16

約数和(自身を含む): 126124416

約数和(自身を除く): 35404031

約数列:

[1, 5, 7, 35, 73, 365, 511, 2555, 35507, 177535, 248549, 1242745, 2592011, 12960055, 18144077, 90720385]

約数ペア:

[(1, 90720385), (5, 18144077), (7, 12960055), (35, 2592011), (73, 1242745), (365, 248549), (511, 177535), (2555, 35507)]