78895160

素因数分解:

$2^3\times 5^1\times {\mathrm{1972379}}^1$

素因数の和:1972390

約数の個数: 16

約数和(自身を含む): 177514200

約数和(自身を除く): 98619040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1972379, 3944758, 7889516, 9861895, 15779032, 19723790, 39447580, 78895160]

約数ペア:

[(1, 78895160), (2, 39447580), (4, 19723790), (5, 15779032), (8, 9861895), (10, 7889516), (20, 3944758), (40, 1972379)]