857264

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{409}}^1$

素因数の和:548

約数の個数: 20

約数和(自身を含む): 1677720

約数和(自身を除く): 820456

約数列:

[1, 2, 4, 8, 16, 131, 262, 409, 524, 818, 1048, 1636, 2096, 3272, 6544, 53579, 107158, 214316, 428632, 857264]

約数ペア:

[(1, 857264), (2, 428632), (4, 214316), (8, 107158), (16, 53579), (131, 6544), (262, 3272), (409, 2096), (524, 1636), (818, 1048)]