220810

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{311}}^1$

素因数の和:389

約数の個数: 16

約数和(自身を含む): 404352

約数和(自身を除く): 183542

約数列:

[1, 2, 5, 10, 71, 142, 311, 355, 622, 710, 1555, 3110, 22081, 44162, 110405, 220810]

約数ペア:

[(1, 220810), (2, 110405), (5, 44162), (10, 22081), (71, 3110), (142, 1555), (311, 710), (355, 622)]