68140580

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1\times {\mathrm{193}}^1$

素因数の和:468

約数の個数: 48

約数和(自身を含む): 146012160

約数和(自身を除く): 77871580

約数列:

[1, 2, 4, 5, 10, 20, 127, 139, 193, 254, 278, 386, 508, 556, 635, 695, 772, 965, 1270, 1390, 1930, 2540, 2780, 3860, 17653, 24511, 26827, 35306, 49022, 53654, 70612, 88265, 98044, 107308, 122555, 134135, 176530, 245110, 268270, 353060, 490220, 536540, 3407029, 6814058, 13628116, 17035145, 34070290, 68140580]

約数ペア:

[(1, 68140580), (2, 34070290), (4, 17035145), (5, 13628116), (10, 6814058), (20, 3407029), (127, 536540), (139, 490220), (193, 353060), (254, 268270), (278, 245110), (386, 176530), (508, 134135), (556, 122555), (635, 107308), (695, 98044), (772, 88265), (965, 70612), (1270, 53654), (1390, 49022), (1930, 35306), (2540, 26827), (2780, 24511), (3860, 17653)]