20188405520

素因数分解:

$2^4\times 5^1\times {\mathrm{252355069}}^1$

素因数の和:252355082

約数の個数: 20

約数和(自身を含む): 46938043020

約数和(自身を除く): 26749637500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252355069, 504710138, 1009420276, 1261775345, 2018840552, 2523550690, 4037681104, 5047101380, 10094202760, 20188405520]

約数ペア:

[(1, 20188405520), (2, 10094202760), (4, 5047101380), (5, 4037681104), (8, 2523550690), (10, 2018840552), (16, 1261775345), (20, 1009420276), (40, 504710138), (80, 252355069)]