20326760

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{2633}}^1$

素因数の和:2837

約数の個数: 32

約数和(自身を含む): 45989640

約数和(自身を除く): 25662880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 386, 772, 965, 1544, 1930, 2633, 3860, 5266, 7720, 10532, 13165, 21064, 26330, 52660, 105320, 508169, 1016338, 2032676, 2540845, 4065352, 5081690, 10163380, 20326760]

約数ペア:

[(1, 20326760), (2, 10163380), (4, 5081690), (5, 4065352), (8, 2540845), (10, 2032676), (20, 1016338), (40, 508169), (193, 105320), (386, 52660), (772, 26330), (965, 21064), (1544, 13165), (1930, 10532), (2633, 7720), (3860, 5266)]