28716440

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{19403}}^1$

素因数の和:19451

約数の個数: 32

約数和(自身を含む): 66361680

約数和(自身を除く): 37645240

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 19403, 38806, 77612, 97015, 155224, 194030, 388060, 717911, 776120, 1435822, 2871644, 3589555, 5743288, 7179110, 14358220, 28716440]

約数ペア:

[(1, 28716440), (2, 14358220), (4, 7179110), (5, 5743288), (8, 3589555), (10, 2871644), (20, 1435822), (37, 776120), (40, 717911), (74, 388060), (148, 194030), (185, 155224), (296, 97015), (370, 77612), (740, 38806), (1480, 19403)]