28817140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{130987}}^1$

素因数の和:131007

約数の個数: 24

約数和(自身を含む): 66017952

約数和(自身を除く): 37200812

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 130987, 261974, 523948, 654935, 1309870, 1440857, 2619740, 2881714, 5763428, 7204285, 14408570, 28817140]

約数ペア:

[(1, 28817140), (2, 14408570), (4, 7204285), (5, 5763428), (10, 2881714), (11, 2619740), (20, 1440857), (22, 1309870), (44, 654935), (55, 523948), (110, 261974), (220, 130987)]