87681140

素因数分解:

$2^2\times 5^1\times {\mathrm{4384057}}^1$

素因数の和:4384066

約数の個数: 12

約数和(自身を含む): 184130436

約数和(自身を除く): 96449296

約数列:

[1, 2, 4, 5, 10, 20, 4384057, 8768114, 17536228, 21920285, 43840570, 87681140]

約数ペア:

[(1, 87681140), (2, 43840570), (4, 21920285), (5, 17536228), (10, 8768114), (20, 4384057)]