54657820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{390413}}^1$

素因数の和:390429

約数の個数: 24

約数和(自身を含む): 131179104

約数和(自身を除く): 76521284

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 390413, 780826, 1561652, 1952065, 2732891, 3904130, 5465782, 7808260, 10931564, 13664455, 27328910, 54657820]

約数ペア:

[(1, 54657820), (2, 27328910), (4, 13664455), (5, 10931564), (7, 7808260), (10, 5465782), (14, 3904130), (20, 2732891), (28, 1952065), (35, 1561652), (70, 780826), (140, 390413)]