81773045.000000000

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{2857}}^1$

素因数の和:3180

約数の個数: 48

約数和(自身を含む): 295768704

約数和(自身を除く): 172974844

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 307, 614, 1228, 1535, 2149, 2857, 3070, 4298, 5714, 6140, 8596, 10745, 11428, 14285, 19999, 21490, 28570, 39998, 42980, 57140, 79996, 99995, 199990, 399980, 877099, 1754198, 3508396, 4385495, 6139693, 8770990, 12279386, 17541980, 24558772, 30698465, 61396930, 122793860]

約数ペア:

[(1, 122793860), (2, 61396930), (4, 30698465), (5, 24558772), (7, 17541980), (10, 12279386), (14, 8770990), (20, 6139693), (28, 4385495), (35, 3508396), (70, 1754198), (140, 877099), (307, 399980), (614, 199990), (1228, 99995), (1535, 79996), (2149, 57140), (2857, 42980), (3070, 39998), (4298, 28570), (5714, 21490), (6140, 19999), (8596, 14285), (10745, 11428)]