20198035

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:136

約数の個数: 48

約数和(自身を含む): 29883168

約数和(自身を除く): 9685133

約数列:

[1, 5, 11, 13, 41, 53, 55, 65, 143, 169, 205, 265, 451, 533, 583, 689, 715, 845, 1859, 2173, 2255, 2665, 2915, 3445, 5863, 6929, 7579, 8957, 9295, 10865, 23903, 28249, 29315, 34645, 37895, 44785, 76219, 98527, 119515, 141245, 310739, 367237, 381095, 492635, 1553695, 1836185, 4039607, 20198035]

約数ペア:

[(1, 20198035), (5, 4039607), (11, 1836185), (13, 1553695), (41, 492635), (53, 381095), (55, 367237), (65, 310739), (143, 141245), (169, 119515), (205, 98527), (265, 76219), (451, 44785), (533, 37895), (583, 34645), (689, 29315), (715, 28249), (845, 23903), (1859, 10865), (2173, 9295), (2255, 8957), (2665, 7579), (2915, 6929), (3445, 5863)]