28221185

素因数分解:

$5^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1\times {\mathrm{251}}^1$

素因数の和:568

約数の個数: 16

約数和(自身を含む): 34473600

約数和(自身を除く): 6252415

約数列:

[1, 5, 113, 199, 251, 565, 995, 1255, 22487, 28363, 49949, 112435, 141815, 249745, 5644237, 28221185]

約数ペア:

[(1, 28221185), (5, 5644237), (113, 249745), (199, 141815), (251, 112435), (565, 49949), (995, 28363), (1255, 22487)]