20238427760

素因数分解:

$2^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{1310779}}^1$

素因数の和:1310985

約数の個数: 40

約数和(自身を含む): 47298185520

約数和(自身を除く): 27059757760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193, 386, 772, 965, 1544, 1930, 3088, 3860, 7720, 15440, 1310779, 2621558, 5243116, 6553895, 10486232, 13107790, 20972464, 26215580, 52431160, 104862320, 252980347, 505960694, 1011921388, 1264901735, 2023842776, 2529803470, 4047685552, 5059606940, 10119213880, 20238427760]

約数ペア:

[(1, 20238427760), (2, 10119213880), (4, 5059606940), (5, 4047685552), (8, 2529803470), (10, 2023842776), (16, 1264901735), (20, 1011921388), (40, 505960694), (80, 252980347), (193, 104862320), (386, 52431160), (772, 26215580), (965, 20972464), (1544, 13107790), (1930, 10486232), (3088, 6553895), (3860, 5243116), (7720, 2621558), (15440, 1310779)]