21762680

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{2819}}^1$

素因数の和:3023

約数の個数: 32

約数和(自身を含む): 49237200

約数和(自身を除く): 27474520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 386, 772, 965, 1544, 1930, 2819, 3860, 5638, 7720, 11276, 14095, 22552, 28190, 56380, 112760, 544067, 1088134, 2176268, 2720335, 4352536, 5440670, 10881340, 21762680]

約数ペア:

[(1, 21762680), (2, 10881340), (4, 5440670), (5, 4352536), (8, 2720335), (10, 2176268), (20, 1088134), (40, 544067), (193, 112760), (386, 56380), (772, 28190), (965, 22552), (1544, 14095), (1930, 11276), (2819, 7720), (3860, 5638)]