391388778

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{2531}}^1$

素因数の和:2632

約数の個数: 72

約数和(自身を含む): 945610848

約数和(自身を除く): 554222070

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 71, 99, 121, 142, 198, 213, 242, 363, 426, 639, 726, 781, 1089, 1278, 1562, 2178, 2343, 2531, 4686, 5062, 7029, 7593, 8591, 14058, 15186, 17182, 22779, 25773, 27841, 45558, 51546, 55682, 77319, 83523, 154638, 167046, 179701, 250569, 306251, 359402, 501138, 539103, 612502, 918753, 1078206, 1617309, 1837506, 1976711, 2756259, 3234618, 3953422, 5512518, 5930133, 11860266, 17790399, 21743821, 35580798, 43487642, 65231463, 130462926, 195694389, 391388778]

約数ペア:

[(1, 391388778), (2, 195694389), (3, 130462926), (6, 65231463), (9, 43487642), (11, 35580798), (18, 21743821), (22, 17790399), (33, 11860266), (66, 5930133), (71, 5512518), (99, 3953422), (121, 3234618), (142, 2756259), (198, 1976711), (213, 1837506), (242, 1617309), (363, 1078206), (426, 918753), (639, 612502), (726, 539103), (781, 501138), (1089, 359402), (1278, 306251), (1562, 250569), (2178, 179701), (2343, 167046), (2531, 154638), (4686, 83523), (5062, 77319), (7029, 55682), (7593, 51546), (8591, 45558), (14058, 27841), (15186, 25773), (17182, 22779)]