28009840

素因数分解:

$2^4\times 5^1\times {\mathrm{347}}^1\times {\mathrm{1009}}^1$

素因数の和:1369

約数の個数: 40

約数和(自身を含む): 65375280

約数和(自身を除く): 37365440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 347, 694, 1009, 1388, 1735, 2018, 2776, 3470, 4036, 5045, 5552, 6940, 8072, 10090, 13880, 16144, 20180, 27760, 40360, 80720, 350123, 700246, 1400492, 1750615, 2800984, 3501230, 5601968, 7002460, 14004920, 28009840]

約数ペア:

[(1, 28009840), (2, 14004920), (4, 7002460), (5, 5601968), (8, 3501230), (10, 2800984), (16, 1750615), (20, 1400492), (40, 700246), (80, 350123), (347, 80720), (694, 40360), (1009, 27760), (1388, 20180), (1735, 16144), (2018, 13880), (2776, 10090), (3470, 8072), (4036, 6940), (5045, 5552)]