261567180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{207593}}^1$

素因数の和:207615

約数の個数: 72

約数和(自身を含む): 906770592

約数和(自身を除く): 645203412

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 207593, 415186, 622779, 830372, 1037965, 1245558, 1453151, 1868337, 2075930, 2491116, 2906302, 3113895, 3736674, 4151860, 4359453, 5812604, 6227790, 7265755, 7473348, 8718906, 9341685, 12455580, 13078359, 14531510, 17437812, 18683370, 21797265, 26156718, 29063020, 37366740, 43594530, 52313436, 65391795, 87189060, 130783590, 261567180]

約数ペア:

[(1, 261567180), (2, 130783590), (3, 87189060), (4, 65391795), (5, 52313436), (6, 43594530), (7, 37366740), (9, 29063020), (10, 26156718), (12, 21797265), (14, 18683370), (15, 17437812), (18, 14531510), (20, 13078359), (21, 12455580), (28, 9341685), (30, 8718906), (35, 7473348), (36, 7265755), (42, 6227790), (45, 5812604), (60, 4359453), (63, 4151860), (70, 3736674), (84, 3113895), (90, 2906302), (105, 2491116), (126, 2075930), (140, 1868337), (180, 1453151), (210, 1245558), (252, 1037965), (315, 830372), (420, 622779), (630, 415186), (1260, 207593)]