20771385840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{28849147}}^1$

素因数の和:28849166

約数の個数: 60

約数和(自身を含む): 69757239864

約数和(自身を除く): 48985854024

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 28849147, 57698294, 86547441, 115396588, 144245735, 173094882, 230793176, 259642323, 288491470, 346189764, 432737205, 461586352, 519284646, 576982940, 692379528, 865474410, 1038569292, 1153965880, 1298211615, 1384759056, 1730948820, 2077138584, 2307931760, 2596423230, 3461897640, 4154277168, 5192846460, 6923795280, 10385692920, 20771385840]

約数ペア:

[(1, 20771385840), (2, 10385692920), (3, 6923795280), (4, 5192846460), (5, 4154277168), (6, 3461897640), (8, 2596423230), (9, 2307931760), (10, 2077138584), (12, 1730948820), (15, 1384759056), (16, 1298211615), (18, 1153965880), (20, 1038569292), (24, 865474410), (30, 692379528), (36, 576982940), (40, 519284646), (45, 461586352), (48, 432737205), (60, 346189764), (72, 288491470), (80, 259642323), (90, 230793176), (120, 173094882), (144, 144245735), (180, 115396588), (240, 86547441), (360, 57698294), (720, 28849147)]