20438872

素因数分解:

$2^3\times {\mathrm{127}}^1\times {\mathrm{20117}}^1$

素因数の和:20250

約数の個数: 16

約数和(自身を含む): 38626560

約数和(自身を除く): 18187688

約数列:

[1, 2, 4, 8, 127, 254, 508, 1016, 20117, 40234, 80468, 160936, 2554859, 5109718, 10219436, 20438872]

約数ペア:

[(1, 20438872), (2, 10219436), (4, 5109718), (8, 2554859), (127, 160936), (254, 80468), (508, 40234), (1016, 20117)]