2889460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{20639}}^1$

素因数の和:20655

約数の個数: 24

約数和(自身を含む): 6935040

約数和(自身を除く): 4045580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 20639, 41278, 82556, 103195, 144473, 206390, 288946, 412780, 577892, 722365, 1444730, 2889460]

約数ペア:

[(1, 2889460), (2, 1444730), (4, 722365), (5, 577892), (7, 412780), (10, 288946), (14, 206390), (20, 144473), (28, 103195), (35, 82556), (70, 41278), (140, 20639)]