20915520

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{21787}}^1$

素因数の和:21807

約数の個数: 56

約数和(自身を含む): 66409824

約数和(自身を除く): 45494304

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 480, 960, 21787, 43574, 65361, 87148, 108935, 130722, 174296, 217870, 261444, 326805, 348592, 435740, 522888, 653610, 697184, 871480, 1045776, 1307220, 1394368, 1742960, 2091552, 2614440, 3485920, 4183104, 5228880, 6971840, 10457760, 20915520]

約数ペア:

[(1, 20915520), (2, 10457760), (3, 6971840), (4, 5228880), (5, 4183104), (6, 3485920), (8, 2614440), (10, 2091552), (12, 1742960), (15, 1394368), (16, 1307220), (20, 1045776), (24, 871480), (30, 697184), (32, 653610), (40, 522888), (48, 435740), (60, 348592), (64, 326805), (80, 261444), (96, 217870), (120, 174296), (160, 130722), (192, 108935), (240, 87148), (320, 65361), (480, 43574), (960, 21787)]