20873290

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{29399}}^1$

素因数の和:29477

約数の個数: 16

約数和(自身を含む): 38102400

約数和(自身を除く): 17229110

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 29399, 58798, 146995, 293990, 2087329, 4174658, 10436645, 20873290]

約数ペア:

[(1, 20873290), (2, 10436645), (5, 4174658), (10, 2087329), (71, 293990), (142, 146995), (355, 58798), (710, 29399)]