351280

素因数分解:

$2^4\times 5^1\times {\mathrm{4391}}^1$

素因数の和:4404

約数の個数: 20

約数和(自身を含む): 816912

約数和(自身を除く): 465632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4391, 8782, 17564, 21955, 35128, 43910, 70256, 87820, 175640, 351280]

約数ペア:

[(1, 351280), (2, 175640), (4, 87820), (5, 70256), (8, 43910), (10, 35128), (16, 21955), (20, 17564), (40, 8782), (80, 4391)]