261774392

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{15413}}^1$

素因数の和:15623

約数の個数: 32

約数和(自身を含む): 538256880

約数和(自身を除く): 276482488

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 193, 386, 772, 1544, 2123, 4246, 8492, 15413, 16984, 30826, 61652, 123304, 169543, 339086, 678172, 1356344, 2974709, 5949418, 11898836, 23797672, 32721799, 65443598, 130887196, 261774392]

約数ペア:

[(1, 261774392), (2, 130887196), (4, 65443598), (8, 32721799), (11, 23797672), (22, 11898836), (44, 5949418), (88, 2974709), (193, 1356344), (386, 678172), (772, 339086), (1544, 169543), (2123, 123304), (4246, 61652), (8492, 30826), (15413, 16984)]