51513400

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:281

約数の個数: 96

約数和(自身を含む): 128898000

約数和(自身を除く): 77384600

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 85, 100, 109, 136, 139, 170, 200, 218, 278, 340, 425, 436, 545, 556, 680, 695, 850, 872, 1090, 1112, 1390, 1700, 1853, 2180, 2363, 2725, 2780, 3400, 3475, 3706, 4360, 4726, 5450, 5560, 6950, 7412, 9265, 9452, 10900, 11815, 13900, 14824, 15151, 18530, 18904, 21800, 23630, 27800, 30302, 37060, 46325, 47260, 59075, 60604, 74120, 75755, 92650, 94520, 118150, 121208, 151510, 185300, 236300, 257567, 303020, 370600, 378775, 472600, 515134, 606040, 757550, 1030268, 1287835, 1515100, 2060536, 2575670, 3030200, 5151340, 6439175, 10302680, 12878350, 25756700, 51513400]

約数ペア:

[(1, 51513400), (2, 25756700), (4, 12878350), (5, 10302680), (8, 6439175), (10, 5151340), (17, 3030200), (20, 2575670), (25, 2060536), (34, 1515100), (40, 1287835), (50, 1030268), (68, 757550), (85, 606040), (100, 515134), (109, 472600), (136, 378775), (139, 370600), (170, 303020), (200, 257567), (218, 236300), (278, 185300), (340, 151510), (425, 121208), (436, 118150), (545, 94520), (556, 92650), (680, 75755), (695, 74120), (850, 60604), (872, 59075), (1090, 47260), (1112, 46325), (1390, 37060), (1700, 30302), (1853, 27800), (2180, 23630), (2363, 21800), (2725, 18904), (2780, 18530), (3400, 15151), (3475, 14824), (3706, 13900), (4360, 11815), (4726, 10900), (5450, 9452), (5560, 9265), (6950, 7412)]