81904055

素因数分解:

$5^1\times {\mathrm{103}}^1\times {\mathrm{359}}^1\times {\mathrm{443}}^1$

素因数の和:910

約数の個数: 16

約数和(自身を含む): 99740160

約数和(自身を除く): 17836105

約数列:

[1, 5, 103, 359, 443, 515, 1795, 2215, 36977, 45629, 159037, 184885, 228145, 795185, 16380811, 81904055]

約数ペア:

[(1, 81904055), (5, 16380811), (103, 795185), (359, 228145), (443, 184885), (515, 159037), (1795, 45629), (2215, 36977)]