28031620

素因数分解:

$2^2\times 5^1\times {\mathrm{1061}}^1\times {\mathrm{1321}}^1$

素因数の和:2391

約数の個数: 24

約数和(自身を含む): 58966488

約数和(自身を除く): 30934868

約数列:

[1, 2, 4, 5, 10, 20, 1061, 1321, 2122, 2642, 4244, 5284, 5305, 6605, 10610, 13210, 21220, 26420, 1401581, 2803162, 5606324, 7007905, 14015810, 28031620]

約数ペア:

[(1, 28031620), (2, 14015810), (4, 7007905), (5, 5606324), (10, 2803162), (20, 1401581), (1061, 26420), (1321, 21220), (2122, 13210), (2642, 10610), (4244, 6605), (5284, 5305)]