128960004

素因数分解:

$2^2\times 3^1\times {\mathrm{521}}^1\times {\mathrm{20627}}^1$

素因数の和:21155

約数の個数: 24

約数和(自身を含む): 301498848

約数和(自身を除く): 172538844

約数列:

[1, 2, 3, 4, 6, 12, 521, 1042, 1563, 2084, 3126, 6252, 20627, 41254, 61881, 82508, 123762, 247524, 10746667, 21493334, 32240001, 42986668, 64480002, 128960004]

約数ペア:

[(1, 128960004), (2, 64480002), (3, 42986668), (4, 32240001), (6, 21493334), (12, 10746667), (521, 247524), (1042, 123762), (1563, 82508), (2084, 61881), (3126, 41254), (6252, 20627)]