20575165

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{10211}}^1$

素因数の和:10260

約数の個数: 16

約数和(自身を含む): 27449856

約数和(自身を除く): 6874691

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 10211, 51055, 132743, 316541, 663715, 1582705, 4115033, 20575165]

約数ペア:

[(1, 20575165), (5, 4115033), (13, 1582705), (31, 663715), (65, 316541), (155, 132743), (403, 51055), (2015, 10211)]