201817820

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{121577}}^1$

素因数の和:121669

約数の個数: 24

約数和(自身を含む): 428927184

約数和(自身を除く): 227109364

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 121577, 243154, 486308, 607885, 1215770, 2431540, 10090891, 20181782, 40363564, 50454455, 100908910, 201817820]

約数ペア:

[(1, 201817820), (2, 100908910), (4, 50454455), (5, 40363564), (10, 20181782), (20, 10090891), (83, 2431540), (166, 1215770), (332, 607885), (415, 486308), (830, 243154), (1660, 121577)]