143140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1$

素因数の和:447

約数の個数: 24

約数和(自身を含む): 319032

約数和(自身を除く): 175892

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 421, 842, 1684, 2105, 4210, 7157, 8420, 14314, 28628, 35785, 71570, 143140]

約数ペア:

[(1, 143140), (2, 71570), (4, 35785), (5, 28628), (10, 14314), (17, 8420), (20, 7157), (34, 4210), (68, 2105), (85, 1684), (170, 842), (340, 421)]