87030775

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{20599}}^1$

素因数の和:20635

約数の個数: 18

約数和(自身を含む): 116863800

約数和(自身を除く): 29833025

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 4225, 20599, 102995, 267787, 514975, 1338935, 3481231, 6694675, 17406155, 87030775]

約数ペア:

[(1, 87030775), (5, 17406155), (13, 6694675), (25, 3481231), (65, 1338935), (169, 514975), (325, 267787), (845, 102995), (4225, 20599)]