28385770

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:275

約数の個数: 64

約数和(自身を含む): 61341696

約数和(自身を除く): 32955926

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 103, 127, 155, 206, 217, 254, 310, 434, 515, 635, 721, 889, 1030, 1085, 1270, 1442, 1778, 2170, 3193, 3605, 3937, 4445, 6386, 7210, 7874, 8890, 13081, 15965, 19685, 22351, 26162, 27559, 31930, 39370, 44702, 55118, 65405, 91567, 111755, 130810, 137795, 183134, 223510, 275590, 405511, 457835, 811022, 915670, 2027555, 2838577, 4055110, 5677154, 14192885, 28385770]

約数ペア:

[(1, 28385770), (2, 14192885), (5, 5677154), (7, 4055110), (10, 2838577), (14, 2027555), (31, 915670), (35, 811022), (62, 457835), (70, 405511), (103, 275590), (127, 223510), (155, 183134), (206, 137795), (217, 130810), (254, 111755), (310, 91567), (434, 65405), (515, 55118), (635, 44702), (721, 39370), (889, 31930), (1030, 27559), (1085, 26162), (1270, 22351), (1442, 19685), (1778, 15965), (2170, 13081), (3193, 8890), (3605, 7874), (3937, 7210), (4445, 6386)]