21053636080

素因数分解:

$2^4\times 5^1\times {\mathrm{263170451}}^1$

素因数の和:263170464

約数の個数: 20

約数和(自身を含む): 48949704072

約数和(自身を除く): 27896067992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 263170451, 526340902, 1052681804, 1315852255, 2105363608, 2631704510, 4210727216, 5263409020, 10526818040, 21053636080]

約数ペア:

[(1, 21053636080), (2, 10526818040), (4, 5263409020), (5, 4210727216), (8, 2631704510), (10, 2105363608), (16, 1315852255), (20, 1052681804), (40, 526340902), (80, 263170451)]