28239530

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{256723}}^1$

素因数の和:256741

約数の個数: 16

約数和(自身を含む): 55452384

約数和(自身を除く): 27212854

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 256723, 513446, 1283615, 2567230, 2823953, 5647906, 14119765, 28239530]

約数ペア:

[(1, 28239530), (2, 14119765), (5, 5647906), (10, 2823953), (11, 2567230), (22, 1283615), (55, 513446), (110, 256723)]