20890850

素因数分解:

$2^1\times 5^2\times {\mathrm{151}}^1\times {\mathrm{2767}}^1$

素因数の和:2930

約数の個数: 24

約数和(自身を含む): 39128448

約数和(自身を除く): 18237598

約数列:

[1, 2, 5, 10, 25, 50, 151, 302, 755, 1510, 2767, 3775, 5534, 7550, 13835, 27670, 69175, 138350, 417817, 835634, 2089085, 4178170, 10445425, 20890850]

約数ペア:

[(1, 20890850), (2, 10445425), (5, 4178170), (10, 2089085), (25, 835634), (50, 417817), (151, 138350), (302, 69175), (755, 27670), (1510, 13835), (2767, 7550), (3775, 5534)]