128561388

素因数分解:

$2^2\times 3^1\times {\mathrm{389}}^1\times {\mathrm{27541}}^1$

素因数の和:27937

約数の個数: 24

約数和(自身を含む): 300758640

約数和(自身を除く): 172197252

約数列:

[1, 2, 3, 4, 6, 12, 389, 778, 1167, 1556, 2334, 4668, 27541, 55082, 82623, 110164, 165246, 330492, 10713449, 21426898, 32140347, 42853796, 64280694, 128561388]

約数ペア:

[(1, 128561388), (2, 64280694), (3, 42853796), (4, 32140347), (6, 21426898), (12, 10713449), (389, 330492), (778, 165246), (1167, 110164), (1556, 82623), (2334, 55082), (4668, 27541)]