289090840

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{37447}}^1$

素因数の和:37651

約数の個数: 32

約数和(自身を含む): 653842080

約数和(自身を除く): 364751240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 386, 772, 965, 1544, 1930, 3860, 7720, 37447, 74894, 149788, 187235, 299576, 374470, 748940, 1497880, 7227271, 14454542, 28909084, 36136355, 57818168, 72272710, 144545420, 289090840]

約数ペア:

[(1, 289090840), (2, 144545420), (4, 72272710), (5, 57818168), (8, 36136355), (10, 28909084), (20, 14454542), (40, 7227271), (193, 1497880), (386, 748940), (772, 374470), (965, 299576), (1544, 187235), (1930, 149788), (3860, 74894), (7720, 37447)]