28120245

素因数分解:

$3^1\times 5^1\times {\mathrm{691}}^1\times {\mathrm{2713}}^1$

素因数の和:3412

約数の個数: 16

約数和(自身を含む): 45074112

約数和(自身を除く): 16953867

約数列:

[1, 3, 5, 15, 691, 2073, 2713, 3455, 8139, 10365, 13565, 40695, 1874683, 5624049, 9373415, 28120245]

約数ペア:

[(1, 28120245), (3, 9373415), (5, 5624049), (15, 1874683), (691, 40695), (2073, 13565), (2713, 10365), (3455, 8139)]