28128405

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{64663}}^1$

素因数の和:64700

約数の個数: 16

約数和(自身を含む): 46558080

約数和(自身を除く): 18429675

約数列:

[1, 3, 5, 15, 29, 87, 145, 435, 64663, 193989, 323315, 969945, 1875227, 5625681, 9376135, 28128405]

約数ペア:

[(1, 28128405), (3, 9376135), (5, 5625681), (15, 1875227), (29, 969945), (87, 323315), (145, 193989), (435, 64663)]