38906420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{277903}}^1$

素因数の和:277919

約数の個数: 24

約数和(自身を含む): 93375744

約数和(自身を除く): 54469324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 277903, 555806, 1111612, 1389515, 1945321, 2779030, 3890642, 5558060, 7781284, 9726605, 19453210, 38906420]

約数ペア:

[(1, 38906420), (2, 19453210), (4, 9726605), (5, 7781284), (7, 5558060), (10, 3890642), (14, 2779030), (20, 1945321), (28, 1389515), (35, 1111612), (70, 555806), (140, 277903)]