865215

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1$

素因数の和:73

約数の個数: 64

約数和(自身を含む): 1814400

約数和(自身を除く): 949185

約数列:

[1, 3, 5, 9, 13, 15, 17, 27, 29, 39, 45, 51, 65, 85, 87, 117, 135, 145, 153, 195, 221, 255, 261, 351, 377, 435, 459, 493, 585, 663, 765, 783, 1105, 1131, 1305, 1479, 1755, 1885, 1989, 2295, 2465, 3315, 3393, 3915, 4437, 5655, 5967, 6409, 7395, 9945, 10179, 13311, 16965, 19227, 22185, 29835, 32045, 50895, 57681, 66555, 96135, 173043, 288405, 865215]

約数ペア:

[(1, 865215), (3, 288405), (5, 173043), (9, 96135), (13, 66555), (15, 57681), (17, 50895), (27, 32045), (29, 29835), (39, 22185), (45, 19227), (51, 16965), (65, 13311), (85, 10179), (87, 9945), (117, 7395), (135, 6409), (145, 5967), (153, 5655), (195, 4437), (221, 3915), (255, 3393), (261, 3315), (351, 2465), (377, 2295), (435, 1989), (459, 1885), (493, 1755), (585, 1479), (663, 1305), (765, 1131), (783, 1105)]