16380425

素因数分解:

$5^2\times {\mathrm{643}}^1\times {\mathrm{1019}}^1$

素因数の和:1672

約数の個数: 12

約数和(自身を含む): 20363280

約数和(自身を除く): 3982855

約数列:

[1, 5, 25, 643, 1019, 3215, 5095, 16075, 25475, 655217, 3276085, 16380425]

約数ペア:

[(1, 16380425), (5, 3276085), (25, 655217), (643, 25475), (1019, 16075), (3215, 5095)]