8544140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{547}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 19885824

約数和(自身を除く): 11341684

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 547, 710, 781, 1094, 1420, 1562, 2188, 2735, 3124, 3905, 5470, 6017, 7810, 10940, 12034, 15620, 24068, 30085, 38837, 60170, 77674, 120340, 155348, 194185, 388370, 427207, 776740, 854414, 1708828, 2136035, 4272070, 8544140]

約数ペア:

[(1, 8544140), (2, 4272070), (4, 2136035), (5, 1708828), (10, 854414), (11, 776740), (20, 427207), (22, 388370), (44, 194185), (55, 155348), (71, 120340), (110, 77674), (142, 60170), (220, 38837), (284, 30085), (355, 24068), (547, 15620), (710, 12034), (781, 10940), (1094, 7810), (1420, 6017), (1562, 5470), (2188, 3905), (2735, 3124)]