20348077156

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^2\times {\mathrm{199}}^1\times {\mathrm{461}}^1$

素因数の和:817

約数の個数: 72

約数和(自身を含む): 39685060800

約数和(自身を除く): 19336983644

約数列:

[1, 2, 4, 11, 22, 44, 71, 142, 199, 284, 398, 461, 781, 796, 922, 1562, 1844, 2189, 3124, 4378, 5041, 5071, 8756, 10082, 10142, 14129, 20164, 20284, 28258, 32731, 55451, 56516, 65462, 91739, 110902, 130924, 155419, 183478, 221804, 310838, 360041, 366956, 621676, 720082, 1003159, 1009129, 1440164, 2006318, 2018258, 2323901, 4012636, 4036516, 4647802, 6513469, 9295604, 11034749, 13026938, 22069498, 25562911, 26053876, 44138996, 51125822, 71648159, 102251644, 143296318, 286592636, 462456299, 924912598, 1849825196, 5087019289, 10174038578, 20348077156]

約数ペア:

[(1, 20348077156), (2, 10174038578), (4, 5087019289), (11, 1849825196), (22, 924912598), (44, 462456299), (71, 286592636), (142, 143296318), (199, 102251644), (284, 71648159), (398, 51125822), (461, 44138996), (781, 26053876), (796, 25562911), (922, 22069498), (1562, 13026938), (1844, 11034749), (2189, 9295604), (3124, 6513469), (4378, 4647802), (5041, 4036516), (5071, 4012636), (8756, 2323901), (10082, 2018258), (10142, 2006318), (14129, 1440164), (20164, 1009129), (20284, 1003159), (28258, 720082), (32731, 621676), (55451, 366956), (56516, 360041), (65462, 310838), (91739, 221804), (110902, 183478), (130924, 155419)]