2019963280

素因数分解:

$2^4\times 5^1\times {\mathrm{25249541}}^1$

素因数の和:25249554

約数の個数: 20

約数和(自身を含む): 4696414812

約数和(自身を除く): 2676451532

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25249541, 50499082, 100998164, 126247705, 201996328, 252495410, 403992656, 504990820, 1009981640, 2019963280]

約数ペア:

[(1, 2019963280), (2, 1009981640), (4, 504990820), (5, 403992656), (8, 252495410), (10, 201996328), (16, 126247705), (20, 100998164), (40, 50499082), (80, 25249541)]