28640205

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{57859}}^1$

素因数の和:57881

約数の個数: 24

約数和(自身を含む): 54156960

約数和(自身を除く): 25516755

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 57859, 173577, 289295, 520731, 636449, 867885, 1909347, 2603655, 3182245, 5728041, 9546735, 28640205]

約数ペア:

[(1, 28640205), (3, 9546735), (5, 5728041), (9, 3182245), (11, 2603655), (15, 1909347), (33, 867885), (45, 636449), (55, 520731), (99, 289295), (165, 173577), (495, 57859)]