77901964

素因数分解:

$2^2\times 7^2\times {\mathrm{397459}}^1$

素因数の和:397477

約数の個数: 18

約数和(自身を含む): 158586540

約数和(自身を除く): 80684576

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 397459, 794918, 1589836, 2782213, 5564426, 11128852, 19475491, 38950982, 77901964]

約数ペア:

[(1, 77901964), (2, 38950982), (4, 19475491), (7, 11128852), (14, 5564426), (28, 2782213), (49, 1589836), (98, 794918), (196, 397459)]