11121980

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1979}}^1$

素因数の和:2269

約数の個数: 24

約数和(自身を含む): 23451120

約数和(自身を除く): 12329140

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 1124, 1405, 1979, 2810, 3958, 5620, 7916, 9895, 19790, 39580, 556099, 1112198, 2224396, 2780495, 5560990, 11121980]

約数ペア:

[(1, 11121980), (2, 5560990), (4, 2780495), (5, 2224396), (10, 1112198), (20, 556099), (281, 39580), (562, 19790), (1124, 9895), (1405, 7916), (1979, 5620), (2810, 3958)]