19570180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139787}}^1$

素因数の和:139803

約数の個数: 24

約数和(自身を含む): 46968768

約数和(自身を除く): 27398588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 139787, 279574, 559148, 698935, 978509, 1397870, 1957018, 2795740, 3914036, 4892545, 9785090, 19570180]

約数ペア:

[(1, 19570180), (2, 9785090), (4, 4892545), (5, 3914036), (7, 2795740), (10, 1957018), (14, 1397870), (20, 978509), (28, 698935), (35, 559148), (70, 279574), (140, 139787)]