25720004

素因数分解:

$2^2\times {\mathrm{139}}^1\times {\mathrm{167}}^1\times {\mathrm{277}}^1$

素因数の和:587

約数の個数: 24

約数和(自身を含む): 45769920

約数和(自身を除く): 20049916

約数列:

[1, 2, 4, 139, 167, 277, 278, 334, 554, 556, 668, 1108, 23213, 38503, 46259, 46426, 77006, 92518, 92852, 154012, 185036, 6430001, 12860002, 25720004]

約数ペア:

[(1, 25720004), (2, 12860002), (4, 6430001), (139, 185036), (167, 154012), (277, 92852), (278, 92518), (334, 77006), (554, 46426), (556, 46259), (668, 38503), (1108, 23213)]