28747620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{14519}}^1$

素因数の和:14545

約数の個数: 72

約数和(自身を含む): 95135040

約数和(自身を除く): 66387420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 14519, 29038, 43557, 58076, 72595, 87114, 130671, 145190, 159709, 174228, 217785, 261342, 290380, 319418, 435570, 479127, 522684, 638836, 653355, 798545, 871140, 958254, 1306710, 1437381, 1597090, 1916508, 2395635, 2613420, 2874762, 3194180, 4791270, 5749524, 7186905, 9582540, 14373810, 28747620]

約数ペア:

[(1, 28747620), (2, 14373810), (3, 9582540), (4, 7186905), (5, 5749524), (6, 4791270), (9, 3194180), (10, 2874762), (11, 2613420), (12, 2395635), (15, 1916508), (18, 1597090), (20, 1437381), (22, 1306710), (30, 958254), (33, 871140), (36, 798545), (44, 653355), (45, 638836), (55, 522684), (60, 479127), (66, 435570), (90, 319418), (99, 290380), (110, 261342), (132, 217785), (165, 174228), (180, 159709), (198, 145190), (220, 130671), (330, 87114), (396, 72595), (495, 58076), (660, 43557), (990, 29038), (1980, 14519)]