28090245

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{81421}}^1$

素因数の和:81452

約数の個数: 16

約数和(自身を含む): 46899072

約数和(自身を除く): 18808827

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 81421, 244263, 407105, 1221315, 1872683, 5618049, 9363415, 28090245]

約数ペア:

[(1, 28090245), (3, 9363415), (5, 5618049), (15, 1872683), (23, 1221315), (69, 407105), (115, 244263), (345, 81421)]