1661335

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{419}}^1$

素因数の和:498

約数の個数: 16

約数和(自身を含む): 2187360

約数和(自身を除く): 526025

約数列:

[1, 5, 13, 61, 65, 305, 419, 793, 2095, 3965, 5447, 25559, 27235, 127795, 332267, 1661335]

約数ペア:

[(1, 1661335), (5, 332267), (13, 127795), (61, 27235), (65, 25559), (305, 5447), (419, 3965), (793, 2095)]