66549520

素因数分解:

$2^4\times 5^1\times {\mathrm{263}}^1\times {\mathrm{3163}}^1$

素因数の和:3439

約数の個数: 40

約数和(自身を含む): 155365056

約数和(自身を除く): 88815536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 263, 526, 1052, 1315, 2104, 2630, 3163, 4208, 5260, 6326, 10520, 12652, 15815, 21040, 25304, 31630, 50608, 63260, 126520, 253040, 831869, 1663738, 3327476, 4159345, 6654952, 8318690, 13309904, 16637380, 33274760, 66549520]

約数ペア:

[(1, 66549520), (2, 33274760), (4, 16637380), (5, 13309904), (8, 8318690), (10, 6654952), (16, 4159345), (20, 3327476), (40, 1663738), (80, 831869), (263, 253040), (526, 126520), (1052, 63260), (1315, 50608), (2104, 31630), (2630, 25304), (3163, 21040), (4208, 15815), (5260, 12652), (6326, 10520)]