20645392

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{9283}}^1$

素因数の和:9430

約数の個数: 20

約数和(自身を含む): 40292560

約数和(自身を除く): 19647168

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 9283, 18566, 37132, 74264, 148528, 1290337, 2580674, 5161348, 10322696, 20645392]

約数ペア:

[(1, 20645392), (2, 10322696), (4, 5161348), (8, 2580674), (16, 1290337), (139, 148528), (278, 74264), (556, 37132), (1112, 18566), (2224, 9283)]