20380540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53633}}^1$

素因数の和:53661

約数の個数: 24

約数和(自身を含む): 45052560

約数和(自身を除く): 24672020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 53633, 107266, 214532, 268165, 536330, 1019027, 1072660, 2038054, 4076108, 5095135, 10190270, 20380540]

約数ペア:

[(1, 20380540), (2, 10190270), (4, 5095135), (5, 4076108), (10, 2038054), (19, 1072660), (20, 1019027), (38, 536330), (76, 268165), (95, 214532), (190, 107266), (380, 53633)]