71987708

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{643}}^1\times {\mathrm{2153}}^1$

素因数の和:2813

約数の個数: 24

約数和(自身を含む): 135943248

約数和(自身を除く): 63955540

約数列:

[1, 2, 4, 13, 26, 52, 643, 1286, 2153, 2572, 4306, 8359, 8612, 16718, 27989, 33436, 55978, 111956, 1384379, 2768758, 5537516, 17996927, 35993854, 71987708]

約数ペア:

[(1, 71987708), (2, 35993854), (4, 17996927), (13, 5537516), (26, 2768758), (52, 1384379), (643, 111956), (1286, 55978), (2153, 33436), (2572, 27989), (4306, 16718), (8359, 8612)]