18142205

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{691}}^1$

素因数の和:844

約数の個数: 16

約数和(自身を含む): 22420800

約数和(自身を除く): 4278595

約数列:

[1, 5, 59, 89, 295, 445, 691, 3455, 5251, 26255, 40769, 61499, 203845, 307495, 3628441, 18142205]

約数ペア:

[(1, 18142205), (5, 3628441), (59, 307495), (89, 203845), (295, 61499), (445, 40769), (691, 26255), (3455, 5251)]