28449825

素因数分解:

$3^1\times 5^2\times {\mathrm{139}}^1\times {\mathrm{2729}}^1$

素因数の和:2881

約数の個数: 24

約数和(自身を含む): 47392800

約数和(自身を除く): 18942975

約数列:

[1, 3, 5, 15, 25, 75, 139, 417, 695, 2085, 2729, 3475, 8187, 10425, 13645, 40935, 68225, 204675, 379331, 1137993, 1896655, 5689965, 9483275, 28449825]

約数ペア:

[(1, 28449825), (3, 9483275), (5, 5689965), (15, 1896655), (25, 1137993), (75, 379331), (139, 204675), (417, 68225), (695, 40935), (2085, 13645), (2729, 10425), (3475, 8187)]