12821920

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{631}}^1$

素因数の和:773

約数の個数: 48

約数和(自身を含む): 30578688

約数和(自身を除く): 17756768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 254, 508, 631, 635, 1016, 1262, 1270, 2032, 2524, 2540, 3155, 4064, 5048, 5080, 6310, 10096, 10160, 12620, 20192, 20320, 25240, 50480, 80137, 100960, 160274, 320548, 400685, 641096, 801370, 1282192, 1602740, 2564384, 3205480, 6410960, 12821920]

約数ペア:

[(1, 12821920), (2, 6410960), (4, 3205480), (5, 2564384), (8, 1602740), (10, 1282192), (16, 801370), (20, 641096), (32, 400685), (40, 320548), (80, 160274), (127, 100960), (160, 80137), (254, 50480), (508, 25240), (631, 20320), (635, 20192), (1016, 12620), (1262, 10160), (1270, 10096), (2032, 6310), (2524, 5080), (2540, 5048), (3155, 4064)]