211872020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{5717}}^1$

素因数の和:5852

約数の個数: 48

約数和(自身を含む): 475508880

約数和(自身を除く): 263636860

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 109, 170, 218, 340, 436, 545, 1090, 1853, 2180, 3706, 5717, 7412, 9265, 11434, 18530, 22868, 28585, 37060, 57170, 97189, 114340, 194378, 388756, 485945, 623153, 971890, 1246306, 1943780, 2492612, 3115765, 6231530, 10593601, 12463060, 21187202, 42374404, 52968005, 105936010, 211872020]

約数ペア:

[(1, 211872020), (2, 105936010), (4, 52968005), (5, 42374404), (10, 21187202), (17, 12463060), (20, 10593601), (34, 6231530), (68, 3115765), (85, 2492612), (109, 1943780), (170, 1246306), (218, 971890), (340, 623153), (436, 485945), (545, 388756), (1090, 194378), (1853, 114340), (2180, 97189), (3706, 57170), (5717, 37060), (7412, 28585), (9265, 22868), (11434, 18530)]