28703985

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61729}}^1$

素因数の和:61768

約数の個数: 16

約数和(自身を含む): 47408640

約数和(自身を除く): 18704655

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 61729, 185187, 308645, 925935, 1913599, 5740797, 9567995, 28703985]

約数ペア:

[(1, 28703985), (3, 9567995), (5, 5740797), (15, 1913599), (31, 925935), (93, 308645), (155, 185187), (465, 61729)]