66981808

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{193}}^1\times {\mathrm{199}}^1$

素因数の和:509

約数の個数: 40

約数和(自身を含む): 132308000

約数和(自身を除く): 65326192

約数列:

[1, 2, 4, 8, 16, 109, 193, 199, 218, 386, 398, 436, 772, 796, 872, 1544, 1592, 1744, 3088, 3184, 21037, 21691, 38407, 42074, 43382, 76814, 84148, 86764, 153628, 168296, 173528, 307256, 336592, 347056, 614512, 4186363, 8372726, 16745452, 33490904, 66981808]

約数ペア:

[(1, 66981808), (2, 33490904), (4, 16745452), (8, 8372726), (16, 4186363), (109, 614512), (193, 347056), (199, 336592), (218, 307256), (386, 173528), (398, 168296), (436, 153628), (772, 86764), (796, 84148), (872, 76814), (1544, 43382), (1592, 42074), (1744, 38407), (3088, 21691), (3184, 21037)]