12980266

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:286

約数の個数: 32

約数和(自身を含む): 21909888

約数和(自身を除く): 8929622

約数列:

[1, 2, 13, 26, 37, 74, 103, 131, 206, 262, 481, 962, 1339, 1703, 2678, 3406, 3811, 4847, 7622, 9694, 13493, 26986, 49543, 63011, 99086, 126022, 175409, 350818, 499241, 998482, 6490133, 12980266]

約数ペア:

[(1, 12980266), (2, 6490133), (13, 998482), (26, 499241), (37, 350818), (74, 175409), (103, 126022), (131, 99086), (206, 63011), (262, 49543), (481, 26986), (962, 13493), (1339, 9694), (1703, 7622), (2678, 4847), (3406, 3811)]