15998380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{42101}}^1$

素因数の和:42129

約数の個数: 24

約数和(自身を含む): 35365680

約数和(自身を除く): 19367300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 42101, 84202, 168404, 210505, 421010, 799919, 842020, 1599838, 3199676, 3999595, 7999190, 15998380]

約数ペア:

[(1, 15998380), (2, 7999190), (4, 3999595), (5, 3199676), (10, 1599838), (19, 842020), (20, 799919), (38, 421010), (76, 210505), (95, 168404), (190, 84202), (380, 42101)]