15381355

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{359}}^1$

素因数の和:435

約数の個数: 32

約数和(自身を含む): 21772800

約数和(自身を除く): 6391445

約数列:

[1, 5, 11, 19, 41, 55, 95, 205, 209, 359, 451, 779, 1045, 1795, 2255, 3895, 3949, 6821, 8569, 14719, 19745, 34105, 42845, 73595, 75031, 161909, 279661, 375155, 809545, 1398305, 3076271, 15381355]

約数ペア:

[(1, 15381355), (5, 3076271), (11, 1398305), (19, 809545), (41, 375155), (55, 279661), (95, 161909), (205, 75031), (209, 73595), (359, 42845), (451, 34105), (779, 19745), (1045, 14719), (1795, 8569), (2255, 6821), (3895, 3949)]