87807920

素因数分解:

$2^4\times 5^1\times {\mathrm{1097599}}^1$

素因数の和:1097612

約数の個数: 20

約数和(自身を含む): 204153600

約数和(自身を除く): 116345680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1097599, 2195198, 4390396, 5487995, 8780792, 10975990, 17561584, 21951980, 43903960, 87807920]

約数ペア:

[(1, 87807920), (2, 43903960), (4, 21951980), (5, 17561584), (8, 10975990), (10, 8780792), (16, 5487995), (20, 4390396), (40, 2195198), (80, 1097599)]