857540

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{809}}^1$

素因数の和:871

約数の個数: 24

約数和(自身を含む): 1837080

約数和(自身を除く): 979540

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 809, 1060, 1618, 3236, 4045, 8090, 16180, 42877, 85754, 171508, 214385, 428770, 857540]

約数ペア:

[(1, 857540), (2, 428770), (4, 214385), (5, 171508), (10, 85754), (20, 42877), (53, 16180), (106, 8090), (212, 4045), (265, 3236), (530, 1618), (809, 1060)]