8646040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1279}}^1$

素因数の和:1316

約数の個数: 48

約数和(自身を含む): 21081600

約数和(自身を除く): 12435560

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1279, 1352, 1690, 2558, 3380, 5116, 6395, 6760, 10232, 12790, 16627, 25580, 33254, 51160, 66508, 83135, 133016, 166270, 216151, 332540, 432302, 665080, 864604, 1080755, 1729208, 2161510, 4323020, 8646040]

約数ペア:

[(1, 8646040), (2, 4323020), (4, 2161510), (5, 1729208), (8, 1080755), (10, 864604), (13, 665080), (20, 432302), (26, 332540), (40, 216151), (52, 166270), (65, 133016), (104, 83135), (130, 66508), (169, 51160), (260, 33254), (338, 25580), (520, 16627), (676, 12790), (845, 10232), (1279, 6760), (1352, 6395), (1690, 5116), (2558, 3380)]