19218460

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{3739}}^1$

素因数の和:4005

約数の個数: 24

約数和(自身を含む): 40526640

約数和(自身を除く): 21308180

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 3739, 5140, 7478, 14956, 18695, 37390, 74780, 960923, 1921846, 3843692, 4804615, 9609230, 19218460]

約数ペア:

[(1, 19218460), (2, 9609230), (4, 4804615), (5, 3843692), (10, 1921846), (20, 960923), (257, 74780), (514, 37390), (1028, 18695), (1285, 14956), (2570, 7478), (3739, 5140)]