81380555

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{9967}}^1$

素因数の和:10066

約数の個数: 16

約数和(自身を含む): 103348224

約数和(自身を除く): 21967669

約数列:

[1, 5, 23, 71, 115, 355, 1633, 8165, 9967, 49835, 229241, 707657, 1146205, 3538285, 16276111, 81380555]

約数ペア:

[(1, 81380555), (5, 16276111), (23, 3538285), (71, 1146205), (115, 707657), (355, 229241), (1633, 49835), (8165, 9967)]