19580165

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{457}}^1$

素因数の和:533

約数の個数: 32

約数和(自身を含む): 27699840

約数和(自身を除く): 8119675

約数列:

[1, 5, 11, 19, 41, 55, 95, 205, 209, 451, 457, 779, 1045, 2255, 2285, 3895, 5027, 8569, 8683, 18737, 25135, 42845, 43415, 93685, 95513, 206107, 356003, 477565, 1030535, 1780015, 3916033, 19580165]

約数ペア:

[(1, 19580165), (5, 3916033), (11, 1780015), (19, 1030535), (41, 477565), (55, 356003), (95, 206107), (205, 95513), (209, 93685), (451, 43415), (457, 42845), (779, 25135), (1045, 18737), (2255, 8683), (2285, 8569), (3895, 5027)]