86704270

素因数分解:

$2^1\times 5^1\times {\mathrm{431}}^1\times {\mathrm{20117}}^1$

素因数の和:20555

約数の個数: 16

約数和(自身を含む): 156437568

約数和(自身を除く): 69733298

約数列:

[1, 2, 5, 10, 431, 862, 2155, 4310, 20117, 40234, 100585, 201170, 8670427, 17340854, 43352135, 86704270]

約数ペア:

[(1, 86704270), (2, 43352135), (5, 17340854), (10, 8670427), (431, 201170), (862, 100585), (2155, 40234), (4310, 20117)]