18046420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{128903}}^1$

素因数の和:128919

約数の個数: 24

約数和(自身を含む): 43311744

約数和(自身を除く): 25265324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 128903, 257806, 515612, 644515, 902321, 1289030, 1804642, 2578060, 3609284, 4511605, 9023210, 18046420]

約数ペア:

[(1, 18046420), (2, 9023210), (4, 4511605), (5, 3609284), (7, 2578060), (10, 1804642), (14, 1289030), (20, 902321), (28, 644515), (35, 515612), (70, 257806), (140, 128903)]