20204880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2903}}^1$

素因数の和:2948

約数の個数: 80

約数和(自身を含む): 64817280

約数和(自身を除く): 44612400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 40, 48, 58, 60, 80, 87, 116, 120, 145, 174, 232, 240, 290, 348, 435, 464, 580, 696, 870, 1160, 1392, 1740, 2320, 2903, 3480, 5806, 6960, 8709, 11612, 14515, 17418, 23224, 29030, 34836, 43545, 46448, 58060, 69672, 84187, 87090, 116120, 139344, 168374, 174180, 232240, 252561, 336748, 348360, 420935, 505122, 673496, 696720, 841870, 1010244, 1262805, 1346992, 1683740, 2020488, 2525610, 3367480, 4040976, 5051220, 6734960, 10102440, 20204880]

約数ペア:

[(1, 20204880), (2, 10102440), (3, 6734960), (4, 5051220), (5, 4040976), (6, 3367480), (8, 2525610), (10, 2020488), (12, 1683740), (15, 1346992), (16, 1262805), (20, 1010244), (24, 841870), (29, 696720), (30, 673496), (40, 505122), (48, 420935), (58, 348360), (60, 336748), (80, 252561), (87, 232240), (116, 174180), (120, 168374), (145, 139344), (174, 116120), (232, 87090), (240, 84187), (290, 69672), (348, 58060), (435, 46448), (464, 43545), (580, 34836), (696, 29030), (870, 23224), (1160, 17418), (1392, 14515), (1740, 11612), (2320, 8709), (2903, 6960), (3480, 5806)]