19926560

素因数分解:

$2^5\times 5^1\times {\mathrm{124541}}^1$

素因数の和:124556

約数の個数: 24

約数和(自身を含む): 47076876

約数和(自身を除く): 27150316

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 124541, 249082, 498164, 622705, 996328, 1245410, 1992656, 2490820, 3985312, 4981640, 9963280, 19926560]

約数ペア:

[(1, 19926560), (2, 9963280), (4, 4981640), (5, 3985312), (8, 2490820), (10, 1992656), (16, 1245410), (20, 996328), (32, 622705), (40, 498164), (80, 249082), (160, 124541)]