25981660

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{193}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 56318976

約数和(自身を除く): 30337316

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 127, 193, 212, 254, 265, 386, 508, 530, 635, 772, 965, 1060, 1270, 1930, 2540, 3860, 6731, 10229, 13462, 20458, 24511, 26924, 33655, 40916, 49022, 51145, 67310, 98044, 102290, 122555, 134620, 204580, 245110, 490220, 1299083, 2598166, 5196332, 6495415, 12990830, 25981660]

約数ペア:

[(1, 25981660), (2, 12990830), (4, 6495415), (5, 5196332), (10, 2598166), (20, 1299083), (53, 490220), (106, 245110), (127, 204580), (193, 134620), (212, 122555), (254, 102290), (265, 98044), (386, 67310), (508, 51145), (530, 49022), (635, 40916), (772, 33655), (965, 26924), (1060, 24511), (1270, 20458), (1930, 13462), (2540, 10229), (3860, 6731)]