28806310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{221587}}^1$

素因数の和:221607

約数の個数: 16

約数和(自身を含む): 55840176

約数和(自身を除く): 27033866

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 221587, 443174, 1107935, 2215870, 2880631, 5761262, 14403155, 28806310]

約数ペア:

[(1, 28806310), (2, 14403155), (5, 5761262), (10, 2880631), (13, 2215870), (26, 1107935), (65, 443174), (130, 221587)]