20387245

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{719}}^1$

素因数の和:884

約数の個数: 16

約数和(自身を含む): 25194240

約数和(自身を除く): 4806995

約数列:

[1, 5, 53, 107, 265, 535, 719, 3595, 5671, 28355, 38107, 76933, 190535, 384665, 4077449, 20387245]

約数ペア:

[(1, 20387245), (5, 4077449), (53, 384665), (107, 190535), (265, 76933), (535, 38107), (719, 28355), (3595, 5671)]