20685120

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{743}}^1$

素因数の和:792

約数の個数: 112

約数和(自身を含む): 68031360

約数和(自身を除く): 47346240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 32, 40, 48, 58, 60, 64, 80, 87, 96, 116, 120, 145, 160, 174, 192, 232, 240, 290, 320, 348, 435, 464, 480, 580, 696, 743, 870, 928, 960, 1160, 1392, 1486, 1740, 1856, 2229, 2320, 2784, 2972, 3480, 3715, 4458, 4640, 5568, 5944, 6960, 7430, 8916, 9280, 11145, 11888, 13920, 14860, 17832, 21547, 22290, 23776, 27840, 29720, 35664, 43094, 44580, 47552, 59440, 64641, 71328, 86188, 89160, 107735, 118880, 129282, 142656, 172376, 178320, 215470, 237760, 258564, 323205, 344752, 356640, 430940, 517128, 646410, 689504, 713280, 861880, 1034256, 1292820, 1379008, 1723760, 2068512, 2585640, 3447520, 4137024, 5171280, 6895040, 10342560, 20685120]

約数ペア:

[(1, 20685120), (2, 10342560), (3, 6895040), (4, 5171280), (5, 4137024), (6, 3447520), (8, 2585640), (10, 2068512), (12, 1723760), (15, 1379008), (16, 1292820), (20, 1034256), (24, 861880), (29, 713280), (30, 689504), (32, 646410), (40, 517128), (48, 430940), (58, 356640), (60, 344752), (64, 323205), (80, 258564), (87, 237760), (96, 215470), (116, 178320), (120, 172376), (145, 142656), (160, 129282), (174, 118880), (192, 107735), (232, 89160), (240, 86188), (290, 71328), (320, 64641), (348, 59440), (435, 47552), (464, 44580), (480, 43094), (580, 35664), (696, 29720), (743, 27840), (870, 23776), (928, 22290), (960, 21547), (1160, 17832), (1392, 14860), (1486, 13920), (1740, 11888), (1856, 11145), (2229, 9280), (2320, 8916), (2784, 7430), (2972, 6960), (3480, 5944), (3715, 5568), (4458, 4640)]