18705560

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{2423}}^1$

素因数の和:2627

約数の個数: 32

約数和(自身を含む): 42323040

約数和(自身を除く): 23617480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 386, 772, 965, 1544, 1930, 2423, 3860, 4846, 7720, 9692, 12115, 19384, 24230, 48460, 96920, 467639, 935278, 1870556, 2338195, 3741112, 4676390, 9352780, 18705560]

約数ペア:

[(1, 18705560), (2, 9352780), (4, 4676390), (5, 3741112), (8, 2338195), (10, 1870556), (20, 935278), (40, 467639), (193, 96920), (386, 48460), (772, 24230), (965, 19384), (1544, 12115), (1930, 9692), (2423, 7720), (3860, 4846)]