643555990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{6581}}^1$

素因数の和:6733

約数の個数: 64

約数和(自身を含む): 1455833088

約数和(自身を除く): 812277098

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 127, 154, 254, 385, 635, 770, 889, 1270, 1397, 1778, 2794, 4445, 6581, 6985, 8890, 9779, 13162, 13970, 19558, 32905, 46067, 48895, 65810, 72391, 92134, 97790, 144782, 230335, 361955, 460670, 506737, 723910, 835787, 1013474, 1671574, 2533685, 4178935, 5067370, 5850509, 8357870, 9193657, 11701018, 18387314, 29252545, 45968285, 58505090, 64355599, 91936570, 128711198, 321777995, 643555990]

約数ペア:

[(1, 643555990), (2, 321777995), (5, 128711198), (7, 91936570), (10, 64355599), (11, 58505090), (14, 45968285), (22, 29252545), (35, 18387314), (55, 11701018), (70, 9193657), (77, 8357870), (110, 5850509), (127, 5067370), (154, 4178935), (254, 2533685), (385, 1671574), (635, 1013474), (770, 835787), (889, 723910), (1270, 506737), (1397, 460670), (1778, 361955), (2794, 230335), (4445, 144782), (6581, 97790), (6985, 92134), (8890, 72391), (9779, 65810), (13162, 48895), (13970, 46067), (19558, 32905)]