28978895

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{2521}}^1$

素因数の和:2567

約数の個数: 24

約数和(自身を含む): 40251120

約数和(自身を除く): 11272225

約数列:

[1, 5, 11, 19, 55, 95, 121, 209, 605, 1045, 2299, 2521, 11495, 12605, 27731, 47899, 138655, 239495, 305041, 526889, 1525205, 2634445, 5795779, 28978895]

約数ペア:

[(1, 28978895), (5, 5795779), (11, 2634445), (19, 1525205), (55, 526889), (95, 305041), (121, 239495), (209, 138655), (605, 47899), (1045, 27731), (2299, 12605), (2521, 11495)]