28108015

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{3301}}^1$

素因数の和:3450

約数の個数: 16

約数和(自身を含む): 36612576

約数和(自身を除く): 8504561

約数列:

[1, 5, 13, 65, 131, 655, 1703, 3301, 8515, 16505, 42913, 214565, 432431, 2162155, 5621603, 28108015]

約数ペア:

[(1, 28108015), (5, 5621603), (13, 2162155), (65, 432431), (131, 214565), (655, 42913), (1703, 16505), (3301, 8515)]