28751740

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{23567}}^1$

素因数の和:23637

約数の個数: 24

約数和(自身を含む): 61371072

約数和(自身を除く): 32619332

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 23567, 47134, 94268, 117835, 235670, 471340, 1437587, 2875174, 5750348, 7187935, 14375870, 28751740]

約数ペア:

[(1, 28751740), (2, 14375870), (4, 7187935), (5, 5750348), (10, 2875174), (20, 1437587), (61, 471340), (122, 235670), (244, 117835), (305, 94268), (610, 47134), (1220, 23567)]