20290678

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{3943}}^1$

素因数の和:4059

約数の個数: 16

約数和(自身を含む): 31804416

約数和(自身を除く): 11513738

約数列:

[1, 2, 31, 62, 83, 166, 2573, 3943, 5146, 7886, 122233, 244466, 327269, 654538, 10145339, 20290678]

約数ペア:

[(1, 20290678), (2, 10145339), (31, 654538), (62, 327269), (83, 244466), (166, 122233), (2573, 7886), (3943, 5146)]