128724728

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{31123}}^1$

素因数の和:31187

約数の個数: 32

約数和(自身を含む): 268911360

約数和(自身を除く): 140186632

約数列:

[1, 2, 4, 8, 11, 22, 44, 47, 88, 94, 188, 376, 517, 1034, 2068, 4136, 31123, 62246, 124492, 248984, 342353, 684706, 1369412, 1462781, 2738824, 2925562, 5851124, 11702248, 16090591, 32181182, 64362364, 128724728]

約数ペア:

[(1, 128724728), (2, 64362364), (4, 32181182), (8, 16090591), (11, 11702248), (22, 5851124), (44, 2925562), (47, 2738824), (88, 1462781), (94, 1369412), (188, 684706), (376, 342353), (517, 248984), (1034, 124492), (2068, 62246), (4136, 31123)]