123645388

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{85627}}^1$

素因数の和:85669

約数の個数: 18

約数和(自身を含む): 228369876

約数和(自身を除く): 104724488

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 85627, 171254, 342508, 1626913, 3253826, 6507652, 30911347, 61822694, 123645388]

約数ペア:

[(1, 123645388), (2, 61822694), (4, 30911347), (19, 6507652), (38, 3253826), (76, 1626913), (361, 342508), (722, 171254), (1444, 85627)]