81140906

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{2521}}^1$

素因数の和:2571

約数の個数: 48

約数和(自身を含む): 161004480

約数和(自身を除く): 79863574

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 77, 121, 133, 154, 209, 242, 266, 418, 847, 1463, 1694, 2299, 2521, 2926, 4598, 5042, 16093, 17647, 27731, 32186, 35294, 47899, 55462, 95798, 194117, 305041, 335293, 388234, 526889, 610082, 670586, 1053778, 2135287, 3688223, 4270574, 5795779, 7376446, 11591558, 40570453, 81140906]

約数ペア:

[(1, 81140906), (2, 40570453), (7, 11591558), (11, 7376446), (14, 5795779), (19, 4270574), (22, 3688223), (38, 2135287), (77, 1053778), (121, 670586), (133, 610082), (154, 526889), (209, 388234), (242, 335293), (266, 305041), (418, 194117), (847, 95798), (1463, 55462), (1694, 47899), (2299, 35294), (2521, 32186), (2926, 27731), (4598, 17647), (5042, 16093)]