20179963280

素因数分解:

$2^4\times 5^1\times {\mathrm{252249541}}^1$

素因数の和:252249554

約数の個数: 20

約数和(自身を含む): 46918414812

約数和(自身を除く): 26738451532

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252249541, 504499082, 1008998164, 1261247705, 2017996328, 2522495410, 4035992656, 5044990820, 10089981640, 20179963280]

約数ペア:

[(1, 20179963280), (2, 10089981640), (4, 5044990820), (5, 4035992656), (8, 2522495410), (10, 2017996328), (16, 1261247705), (20, 1008998164), (40, 504499082), (80, 252249541)]