20512320

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{929}}^1$

素因数の和:972

約数の個数: 112

約数和(自身を含む): 68031360

約数和(自身を除く): 47519040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 64, 69, 80, 92, 96, 115, 120, 138, 160, 184, 192, 230, 240, 276, 320, 345, 368, 460, 480, 552, 690, 736, 920, 929, 960, 1104, 1380, 1472, 1840, 1858, 2208, 2760, 2787, 3680, 3716, 4416, 4645, 5520, 5574, 7360, 7432, 9290, 11040, 11148, 13935, 14864, 18580, 21367, 22080, 22296, 27870, 29728, 37160, 42734, 44592, 55740, 59456, 64101, 74320, 85468, 89184, 106835, 111480, 128202, 148640, 170936, 178368, 213670, 222960, 256404, 297280, 320505, 341872, 427340, 445920, 512808, 641010, 683744, 854680, 891840, 1025616, 1282020, 1367488, 1709360, 2051232, 2564040, 3418720, 4102464, 5128080, 6837440, 10256160, 20512320]

約数ペア:

[(1, 20512320), (2, 10256160), (3, 6837440), (4, 5128080), (5, 4102464), (6, 3418720), (8, 2564040), (10, 2051232), (12, 1709360), (15, 1367488), (16, 1282020), (20, 1025616), (23, 891840), (24, 854680), (30, 683744), (32, 641010), (40, 512808), (46, 445920), (48, 427340), (60, 341872), (64, 320505), (69, 297280), (80, 256404), (92, 222960), (96, 213670), (115, 178368), (120, 170936), (138, 148640), (160, 128202), (184, 111480), (192, 106835), (230, 89184), (240, 85468), (276, 74320), (320, 64101), (345, 59456), (368, 55740), (460, 44592), (480, 42734), (552, 37160), (690, 29728), (736, 27870), (920, 22296), (929, 22080), (960, 21367), (1104, 18580), (1380, 14864), (1472, 13935), (1840, 11148), (1858, 11040), (2208, 9290), (2760, 7432), (2787, 7360), (3680, 5574), (3716, 5520), (4416, 4645)]