12948920

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{2549}}^1$

素因数の和:2687

約数の個数: 32

約数和(自身を含む): 29376000

約数和(自身を除く): 16427080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 2549, 5080, 5098, 10196, 12745, 20392, 25490, 50980, 101960, 323723, 647446, 1294892, 1618615, 2589784, 3237230, 6474460, 12948920]

約数ペア:

[(1, 12948920), (2, 6474460), (4, 3237230), (5, 2589784), (8, 1618615), (10, 1294892), (20, 647446), (40, 323723), (127, 101960), (254, 50980), (508, 25490), (635, 20392), (1016, 12745), (1270, 10196), (2540, 5098), (2549, 5080)]