27980390

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{39409}}^1$

素因数の和:39487

約数の個数: 16

約数和(自身を含む): 51075360

約数和(自身を除く): 23094970

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 39409, 78818, 197045, 394090, 2798039, 5596078, 13990195, 27980390]

約数ペア:

[(1, 27980390), (2, 13990195), (5, 5596078), (10, 2798039), (71, 394090), (142, 197045), (355, 78818), (710, 39409)]