20627240

素因数分解:

$2^3\times 5^1\times {\mathrm{515681}}^1$

素因数の和:515692

約数の個数: 16

約数和(自身を含む): 46411380

約数和(自身を除く): 25784140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 515681, 1031362, 2062724, 2578405, 4125448, 5156810, 10313620, 20627240]

約数ペア:

[(1, 20627240), (2, 10313620), (4, 5156810), (5, 4125448), (8, 2578405), (10, 2062724), (20, 1031362), (40, 515681)]