81717995

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{443}}^1\times {\mathrm{467}}^1$

素因数の和:994

約数の個数: 16

約数和(自身を含む): 99740160

約数和(自身を除く): 18022165

約数列:

[1, 5, 79, 395, 443, 467, 2215, 2335, 34997, 36893, 174985, 184465, 206881, 1034405, 16343599, 81717995]

約数ペア:

[(1, 81717995), (5, 16343599), (79, 1034405), (395, 206881), (443, 184465), (467, 174985), (2215, 36893), (2335, 34997)]