20437280

素因数分解:

$2^5\times 5^1\times {\mathrm{127733}}^1$

素因数の和:127748

約数の個数: 24

約数和(自身を含む): 48283452

約数和(自身を除く): 27846172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 127733, 255466, 510932, 638665, 1021864, 1277330, 2043728, 2554660, 4087456, 5109320, 10218640, 20437280]

約数ペア:

[(1, 20437280), (2, 10218640), (4, 5109320), (5, 4087456), (8, 2554660), (10, 2043728), (16, 1277330), (20, 1021864), (32, 638665), (40, 510932), (80, 255466), (160, 127733)]