20122805

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{1109}}^1$

素因数の和:1324

約数の個数: 16

約数和(自身を含む): 25574400

約数和(自身を除く): 5451595

約数列:

[1, 5, 19, 95, 191, 955, 1109, 3629, 5545, 18145, 21071, 105355, 211819, 1059095, 4024561, 20122805]

約数ペア:

[(1, 20122805), (5, 4024561), (19, 1059095), (95, 211819), (191, 105355), (955, 21071), (1109, 18145), (3629, 5545)]