19797280

素因数分解:

$2^5\times 5^1\times {\mathrm{123733}}^1$

素因数の和:123748

約数の個数: 24

約数和(自身を含む): 46771452

約数和(自身を除く): 26974172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 123733, 247466, 494932, 618665, 989864, 1237330, 1979728, 2474660, 3959456, 4949320, 9898640, 19797280]

約数ペア:

[(1, 19797280), (2, 9898640), (4, 4949320), (5, 3959456), (8, 2474660), (10, 1979728), (16, 1237330), (20, 989864), (32, 618665), (40, 494932), (80, 247466), (160, 123733)]