18288440

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{4273}}^1$

素因数の和:4391

約数の個数: 32

約数和(自身を含む): 41543280

約数和(自身を除く): 23254840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4273, 4280, 8546, 17092, 21365, 34184, 42730, 85460, 170920, 457211, 914422, 1828844, 2286055, 3657688, 4572110, 9144220, 18288440]

約数ペア:

[(1, 18288440), (2, 9144220), (4, 4572110), (5, 3657688), (8, 2286055), (10, 1828844), (20, 914422), (40, 457211), (107, 170920), (214, 85460), (428, 42730), (535, 34184), (856, 21365), (1070, 17092), (2140, 8546), (4273, 4280)]