28340505

素因数分解:

$3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{4597}}^1$

素因数の和:4745

約数の個数: 24

約数和(自身を含む): 49492872

約数和(自身を除く): 21152367

約数列:

[1, 3, 5, 9, 15, 45, 137, 411, 685, 1233, 2055, 4597, 6165, 13791, 22985, 41373, 68955, 206865, 629789, 1889367, 3148945, 5668101, 9446835, 28340505]

約数ペア:

[(1, 28340505), (3, 9446835), (5, 5668101), (9, 3148945), (15, 1889367), (45, 629789), (137, 206865), (411, 68955), (685, 41373), (1233, 22985), (2055, 13791), (4597, 6165)]