20427950

素因数分解:

$2^1\times 5^2\times {\mathrm{127}}^1\times {\mathrm{3217}}^1$

素因数の和:3356

約数の個数: 24

約数和(自身を含む): 38307072

約数和(自身を除く): 17879122

約数列:

[1, 2, 5, 10, 25, 50, 127, 254, 635, 1270, 3175, 3217, 6350, 6434, 16085, 32170, 80425, 160850, 408559, 817118, 2042795, 4085590, 10213975, 20427950]

約数ペア:

[(1, 20427950), (2, 10213975), (5, 4085590), (10, 2042795), (25, 817118), (50, 408559), (127, 160850), (254, 80425), (635, 32170), (1270, 16085), (3175, 6434), (3217, 6350)]