28258040

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{7283}}^1$

素因数の和:7391

約数の個数: 32

約数和(自身を含む): 64244880

約数和(自身を除く): 35986840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 7283, 14566, 29132, 36415, 58264, 72830, 145660, 291320, 706451, 1412902, 2825804, 3532255, 5651608, 7064510, 14129020, 28258040]

約数ペア:

[(1, 28258040), (2, 14129020), (4, 7064510), (5, 5651608), (8, 3532255), (10, 2825804), (20, 1412902), (40, 706451), (97, 291320), (194, 145660), (388, 72830), (485, 58264), (776, 36415), (970, 29132), (1940, 14566), (3880, 7283)]