81904510

素因数分解:

$2^1\times 5^1\times {\mathrm{661}}^1\times {\mathrm{12391}}^1$

素因数の和:13059

約数の個数: 16

約数和(自身を含む): 147663072

約数和(自身を除く): 65758562

約数列:

[1, 2, 5, 10, 661, 1322, 3305, 6610, 12391, 24782, 61955, 123910, 8190451, 16380902, 40952255, 81904510]

約数ペア:

[(1, 81904510), (2, 40952255), (5, 16380902), (10, 8190451), (661, 123910), (1322, 61955), (3305, 24782), (6610, 12391)]