398426420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2845903}}^1$

素因数の和:2845919

約数の個数: 24

約数和(自身を含む): 956223744

約数和(自身を除く): 557797324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2845903, 5691806, 11383612, 14229515, 19921321, 28459030, 39842642, 56918060, 79685284, 99606605, 199213210, 398426420]

約数ペア:

[(1, 398426420), (2, 199213210), (4, 99606605), (5, 79685284), (7, 56918060), (10, 39842642), (14, 28459030), (20, 19921321), (28, 14229515), (35, 11383612), (70, 5691806), (140, 2845903)]