81628294

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{433}}^1$

素因数の和:517

約数の個数: 48

約数和(自身を含む): 145459440

約数和(自身を除く): 63831146

約数列:

[1, 2, 11, 19, 22, 38, 41, 82, 121, 209, 242, 418, 433, 451, 779, 866, 902, 1558, 2299, 4598, 4763, 4961, 8227, 8569, 9526, 9922, 16454, 17138, 17753, 35506, 52393, 90497, 94259, 104786, 180994, 188518, 195283, 337307, 390566, 674614, 995467, 1990934, 2148113, 3710377, 4296226, 7420754, 40814147, 81628294]

約数ペア:

[(1, 81628294), (2, 40814147), (11, 7420754), (19, 4296226), (22, 3710377), (38, 2148113), (41, 1990934), (82, 995467), (121, 674614), (209, 390566), (242, 337307), (418, 195283), (433, 188518), (451, 180994), (779, 104786), (866, 94259), (902, 90497), (1558, 52393), (2299, 35506), (4598, 17753), (4763, 17138), (4961, 16454), (8227, 9922), (8569, 9526)]