81872655

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{1759}}^1$

素因数の和:1903

約数の個数: 32

約数和(自身を含む): 136857600

約数和(自身を除く): 54984945

約数列:

[1, 3, 5, 15, 29, 87, 107, 145, 321, 435, 535, 1605, 1759, 3103, 5277, 8795, 9309, 15515, 26385, 46545, 51011, 153033, 188213, 255055, 564639, 765165, 941065, 2823195, 5458177, 16374531, 27290885, 81872655]

約数ペア:

[(1, 81872655), (3, 27290885), (5, 16374531), (15, 5458177), (29, 2823195), (87, 941065), (107, 765165), (145, 564639), (321, 255055), (435, 188213), (535, 153033), (1605, 51011), (1759, 46545), (3103, 26385), (5277, 15515), (8795, 9309)]