28446820

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{13049}}^1$

素因数の和:13167

約数の個数: 24

約数和(自身を含む): 60291000

約数和(自身を除く): 31844180

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 13049, 26098, 52196, 65245, 130490, 260980, 1422341, 2844682, 5689364, 7111705, 14223410, 28446820]

約数ペア:

[(1, 28446820), (2, 14223410), (4, 7111705), (5, 5689364), (10, 2844682), (20, 1422341), (109, 260980), (218, 130490), (436, 65245), (545, 52196), (1090, 26098), (2180, 13049)]