81641440

素因数分解:

$2^5\times 5^1\times {\mathrm{617}}^1\times {\mathrm{827}}^1$

素因数の和:1459

約数の個数: 48

約数和(自身を含む): 193424112

約数和(自身を除く): 111782672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 617, 827, 1234, 1654, 2468, 3085, 3308, 4135, 4936, 6170, 6616, 8270, 9872, 12340, 13232, 16540, 19744, 24680, 26464, 33080, 49360, 66160, 98720, 132320, 510259, 1020518, 2041036, 2551295, 4082072, 5102590, 8164144, 10205180, 16328288, 20410360, 40820720, 81641440]

約数ペア:

[(1, 81641440), (2, 40820720), (4, 20410360), (5, 16328288), (8, 10205180), (10, 8164144), (16, 5102590), (20, 4082072), (32, 2551295), (40, 2041036), (80, 1020518), (160, 510259), (617, 132320), (827, 98720), (1234, 66160), (1654, 49360), (2468, 33080), (3085, 26464), (3308, 24680), (4135, 19744), (4936, 16540), (6170, 13232), (6616, 12340), (8270, 9872)]