19085900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:243

約数の個数: 72

約数和(自身を含む): 44684640

約数和(自身を除く): 25598740

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 103, 109, 170, 206, 218, 340, 412, 425, 436, 515, 545, 850, 1030, 1090, 1700, 1751, 1853, 2060, 2180, 2575, 2725, 3502, 3706, 5150, 5450, 7004, 7412, 8755, 9265, 10300, 10900, 11227, 17510, 18530, 22454, 35020, 37060, 43775, 44908, 46325, 56135, 87550, 92650, 112270, 175100, 185300, 190859, 224540, 280675, 381718, 561350, 763436, 954295, 1122700, 1908590, 3817180, 4771475, 9542950, 19085900]

約数ペア:

[(1, 19085900), (2, 9542950), (4, 4771475), (5, 3817180), (10, 1908590), (17, 1122700), (20, 954295), (25, 763436), (34, 561350), (50, 381718), (68, 280675), (85, 224540), (100, 190859), (103, 185300), (109, 175100), (170, 112270), (206, 92650), (218, 87550), (340, 56135), (412, 46325), (425, 44908), (436, 43775), (515, 37060), (545, 35020), (850, 22454), (1030, 18530), (1090, 17510), (1700, 11227), (1751, 10900), (1853, 10300), (2060, 9265), (2180, 8755), (2575, 7412), (2725, 7004), (3502, 5450), (3706, 5150)]