28876405

素因数分解:

$5^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1\times {\mathrm{271}}^1$

素因数の和:588

約数の個数: 16

約数和(自身を含む): 35290368

約数和(自身を除く): 6413963

約数列:

[1, 5, 101, 211, 271, 505, 1055, 1355, 21311, 27371, 57181, 106555, 136855, 285905, 5775281, 28876405]

約数ペア:

[(1, 28876405), (5, 5775281), (101, 285905), (211, 136855), (271, 106555), (505, 57181), (1055, 27371), (1355, 21311)]