257872

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:306

約数の個数: 20

約数和(自身を含む): 508896

約数和(自身を除く): 251024

約数列:

[1, 2, 4, 8, 16, 71, 142, 227, 284, 454, 568, 908, 1136, 1816, 3632, 16117, 32234, 64468, 128936, 257872]

約数ペア:

[(1, 257872), (2, 128936), (4, 64468), (8, 32234), (16, 16117), (71, 3632), (142, 1816), (227, 1136), (284, 908), (454, 568)]