78004276

素因数分解:

$2^2\times 7^2\times {\mathrm{397981}}^1$

素因数の和:397999

約数の個数: 18

約数和(自身を含む): 158794818

約数和(自身を除く): 80790542

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 397981, 795962, 1591924, 2785867, 5571734, 11143468, 19501069, 39002138, 78004276]

約数ペア:

[(1, 78004276), (2, 39002138), (4, 19501069), (7, 11143468), (14, 5571734), (28, 2785867), (49, 1591924), (98, 795962), (196, 397981)]