20619590

素因数分解:

$2^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{4051}}^1$

素因数の和:4567

約数の個数: 16

約数和(自身を含む): 37197360

約数和(自身を除く): 16577770

約数列:

[1, 2, 5, 10, 509, 1018, 2545, 4051, 5090, 8102, 20255, 40510, 2061959, 4123918, 10309795, 20619590]

約数ペア:

[(1, 20619590), (2, 10309795), (5, 4123918), (10, 2061959), (509, 40510), (1018, 20255), (2545, 8102), (4051, 5090)]