858305960

素因数分解:

$2^3\times 5^1\times {\mathrm{21457649}}^1$

素因数の和:21457660

約数の個数: 16

約数和(自身を含む): 1931188500

約数和(自身を除く): 1072882540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 21457649, 42915298, 85830596, 107288245, 171661192, 214576490, 429152980, 858305960]

約数ペア:

[(1, 858305960), (2, 429152980), (4, 214576490), (5, 171661192), (8, 107288245), (10, 85830596), (20, 42915298), (40, 21457649)]