28342820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{128831}}^1$

素因数の和:128851

約数の個数: 24

約数和(自身を含む): 64931328

約数和(自身を除く): 36588508

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 128831, 257662, 515324, 644155, 1288310, 1417141, 2576620, 2834282, 5668564, 7085705, 14171410, 28342820]

約数ペア:

[(1, 28342820), (2, 14171410), (4, 7085705), (5, 5668564), (10, 2834282), (11, 2576620), (20, 1417141), (22, 1288310), (44, 644155), (55, 515324), (110, 257662), (220, 128831)]