2020140280

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{711317}}^1$

素因数の和:711399

約数の個数: 32

約数和(自身を含む): 4609340640

約数和(自身を除く): 2589200360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 711317, 1422634, 2845268, 3556585, 5690536, 7113170, 14226340, 28452680, 50503507, 101007014, 202014028, 252517535, 404028056, 505035070, 1010070140, 2020140280]

約数ペア:

[(1, 2020140280), (2, 1010070140), (4, 505035070), (5, 404028056), (8, 252517535), (10, 202014028), (20, 101007014), (40, 50503507), (71, 28452680), (142, 14226340), (284, 7113170), (355, 5690536), (568, 3556585), (710, 2845268), (1420, 1422634), (2840, 711317)]