20643088

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{10159}}^1$

素因数の和:10294

約数の個数: 20

約数和(自身を含む): 40314880

約数和(自身を除く): 19671792

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 10159, 20318, 40636, 81272, 162544, 1290193, 2580386, 5160772, 10321544, 20643088]

約数ペア:

[(1, 20643088), (2, 10321544), (4, 5160772), (8, 2580386), (16, 1290193), (127, 162544), (254, 81272), (508, 40636), (1016, 20318), (2032, 10159)]