3981460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{28439}}^1$

素因数の和:28455

約数の個数: 24

約数和(自身を含む): 9555840

約数和(自身を除く): 5574380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 28439, 56878, 113756, 142195, 199073, 284390, 398146, 568780, 796292, 995365, 1990730, 3981460]

約数ペア:

[(1, 3981460), (2, 1990730), (4, 995365), (5, 796292), (7, 568780), (10, 398146), (14, 284390), (20, 199073), (28, 142195), (35, 113756), (70, 56878), (140, 28439)]