2131240

素因数分解:

$2^3\times 5^1\times {\mathrm{53281}}^1$

素因数の和:53292

約数の個数: 16

約数和(自身を含む): 4795380

約数和(自身を除く): 2664140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53281, 106562, 213124, 266405, 426248, 532810, 1065620, 2131240]

約数ペア:

[(1, 2131240), (2, 1065620), (4, 532810), (5, 426248), (8, 266405), (10, 213124), (20, 106562), (40, 53281)]