28184420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{128111}}^1$

素因数の和:128131

約数の個数: 24

約数和(自身を含む): 64568448

約数和(自身を除く): 36384028

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 128111, 256222, 512444, 640555, 1281110, 1409221, 2562220, 2818442, 5636884, 7046105, 14092210, 28184420]

約数ペア:

[(1, 28184420), (2, 14092210), (4, 7046105), (5, 5636884), (10, 2818442), (11, 2562220), (20, 1409221), (22, 1281110), (44, 640555), (55, 512444), (110, 256222), (220, 128111)]