81284805

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{3109}}^1$

素因数の和:3210

約数の個数: 48

約数和(自身を含む): 163013760

約数和(自身を除く): 81728955

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 83, 105, 249, 315, 415, 581, 747, 1245, 1743, 2905, 3109, 3735, 5229, 8715, 9327, 15545, 21763, 26145, 27981, 46635, 65289, 108815, 139905, 195867, 258047, 326445, 774141, 979335, 1290235, 1806329, 2322423, 3870705, 5418987, 9031645, 11612115, 16256961, 27094935, 81284805]

約数ペア:

[(1, 81284805), (3, 27094935), (5, 16256961), (7, 11612115), (9, 9031645), (15, 5418987), (21, 3870705), (35, 2322423), (45, 1806329), (63, 1290235), (83, 979335), (105, 774141), (249, 326445), (315, 258047), (415, 195867), (581, 139905), (747, 108815), (1245, 65289), (1743, 46635), (2905, 27981), (3109, 26145), (3735, 21763), (5229, 15545), (8715, 9327)]