858408860

素因数分解:

$2^2\times 5^1\times {\mathrm{42920443}}^1$

素因数の和:42920452

約数の個数: 12

約数和(自身を含む): 1802658648

約数和(自身を除く): 944249788

約数列:

[1, 2, 4, 5, 10, 20, 42920443, 85840886, 171681772, 214602215, 429204430, 858408860]

約数ペア:

[(1, 858408860), (2, 429204430), (4, 214602215), (5, 171681772), (10, 85840886), (20, 42920443)]