77987812

素因数分解:

$2^2\times 7^2\times {\mathrm{397897}}^1$

素因数の和:397915

約数の個数: 18

約数和(自身を含む): 158761302

約数和(自身を除く): 80773490

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 397897, 795794, 1591588, 2785279, 5570558, 11141116, 19496953, 38993906, 77987812]

約数ペア:

[(1, 77987812), (2, 38993906), (4, 19496953), (7, 11141116), (14, 5570558), (28, 2785279), (49, 1591588), (98, 795794), (196, 397897)]