258728144

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{123439}}^1$

素因数の和:123578

約数の個数: 20

約数和(自身を含む): 505116480

約数和(自身を除く): 246388336

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 123439, 246878, 493756, 987512, 1975024, 16170509, 32341018, 64682036, 129364072, 258728144]

約数ペア:

[(1, 258728144), (2, 129364072), (4, 64682036), (8, 32341018), (16, 16170509), (131, 1975024), (262, 987512), (524, 493756), (1048, 246878), (2096, 123439)]