20208979438

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{263}}^1\times {\mathrm{7907}}^1$

素因数の和:8328

約数の個数: 32

約数和(自身を含む): 31415890176

約数和(自身を除く): 11206910738

約数列:

[1, 2, 43, 86, 113, 226, 263, 526, 4859, 7907, 9718, 11309, 15814, 22618, 29719, 59438, 340001, 680002, 893491, 1277917, 1786982, 2079541, 2555834, 4159082, 38420113, 76840226, 89420263, 178840526, 234988133, 469976266, 10104489719, 20208979438]

約数ペア:

[(1, 20208979438), (2, 10104489719), (43, 469976266), (86, 234988133), (113, 178840526), (226, 89420263), (263, 76840226), (526, 38420113), (4859, 4159082), (7907, 2555834), (9718, 2079541), (11309, 1786982), (15814, 1277917), (22618, 893491), (29719, 680002), (59438, 340001)]