81886040

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{10607}}^1$

素因数の和:10811

約数の個数: 32

約数和(自身を含む): 185215680

約数和(自身を除く): 103329640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 386, 772, 965, 1544, 1930, 3860, 7720, 10607, 21214, 42428, 53035, 84856, 106070, 212140, 424280, 2047151, 4094302, 8188604, 10235755, 16377208, 20471510, 40943020, 81886040]

約数ペア:

[(1, 81886040), (2, 40943020), (4, 20471510), (5, 16377208), (8, 10235755), (10, 8188604), (20, 4094302), (40, 2047151), (193, 424280), (386, 212140), (772, 106070), (965, 84856), (1544, 53035), (1930, 42428), (3860, 21214), (7720, 10607)]