64650740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41981}}^1$

素因数の和:42008

約数の個数: 48

約数和(自身を含む): 169271424

約数和(自身を除く): 104620684

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 41981, 83962, 167924, 209905, 293867, 419810, 461791, 587734, 839620, 923582, 1175468, 1469335, 1847164, 2308955, 2938670, 3232537, 4617910, 5877340, 6465074, 9235820, 12930148, 16162685, 32325370, 64650740]

約数ペア:

[(1, 64650740), (2, 32325370), (4, 16162685), (5, 12930148), (7, 9235820), (10, 6465074), (11, 5877340), (14, 4617910), (20, 3232537), (22, 2938670), (28, 2308955), (35, 1847164), (44, 1469335), (55, 1175468), (70, 923582), (77, 839620), (110, 587734), (140, 461791), (154, 419810), (220, 293867), (308, 209905), (385, 167924), (770, 83962), (1540, 41981)]