163420280

素因数分解:

$2^3\times 5^1\times {\mathrm{4085507}}^1$

素因数の和:4085518

約数の個数: 16

約数和(自身を含む): 367695720

約数和(自身を除く): 204275440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4085507, 8171014, 16342028, 20427535, 32684056, 40855070, 81710140, 163420280]

約数ペア:

[(1, 163420280), (2, 81710140), (4, 40855070), (5, 32684056), (8, 20427535), (10, 16342028), (20, 8171014), (40, 4085507)]