81405465

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{187139}}^1$

素因数の和:187176

約数の個数: 16

約数和(自身を含む): 134740800

約数和(自身を除く): 53335335

約数列:

[1, 3, 5, 15, 29, 87, 145, 435, 187139, 561417, 935695, 2807085, 5427031, 16281093, 27135155, 81405465]

約数ペア:

[(1, 81405465), (3, 27135155), (5, 16281093), (15, 5427031), (29, 2807085), (87, 935695), (145, 561417), (435, 187139)]