12782480

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{6947}}^1$

素因数の和:6983

約数の個数: 40

約数和(自身を含む): 31015872

約数和(自身を除く): 18233392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 6947, 13894, 27788, 34735, 55576, 69470, 111152, 138940, 159781, 277880, 319562, 555760, 639124, 798905, 1278248, 1597810, 2556496, 3195620, 6391240, 12782480]

約数ペア:

[(1, 12782480), (2, 6391240), (4, 3195620), (5, 2556496), (8, 1597810), (10, 1278248), (16, 798905), (20, 639124), (23, 555760), (40, 319562), (46, 277880), (80, 159781), (92, 138940), (115, 111152), (184, 69470), (230, 55576), (368, 34735), (460, 27788), (920, 13894), (1840, 6947)]