81252436

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{56269}}^1$

素因数の和:56311

約数の個数: 18

約数和(自身を含む): 150072090

約数和(自身を除く): 68819654

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 56269, 112538, 225076, 1069111, 2138222, 4276444, 20313109, 40626218, 81252436]

約数ペア:

[(1, 81252436), (2, 40626218), (4, 20313109), (19, 4276444), (38, 2138222), (76, 1069111), (361, 225076), (722, 112538), (1444, 56269)]