858309080

素因数分解:

$2^3\times 5^1\times {\mathrm{21457727}}^1$

素因数の和:21457738

約数の個数: 16

約数和(自身を含む): 1931195520

約数和(自身を除く): 1072886440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 21457727, 42915454, 85830908, 107288635, 171661816, 214577270, 429154540, 858309080]

約数ペア:

[(1, 858309080), (2, 429154540), (4, 214577270), (5, 171661816), (8, 107288635), (10, 85830908), (20, 42915454), (40, 21457727)]