77408828

素因数分解:

$2^2\times 7^2\times {\mathrm{394943}}^1$

素因数の和:394961

約数の個数: 18

約数和(自身を含む): 157582656

約数和(自身を除く): 80173828

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 394943, 789886, 1579772, 2764601, 5529202, 11058404, 19352207, 38704414, 77408828]

約数ペア:

[(1, 77408828), (2, 38704414), (4, 19352207), (7, 11058404), (14, 5529202), (28, 2764601), (49, 1579772), (98, 789886), (196, 394943)]