81502360

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{6637}}^1$

素因数の和:6955

約数の個数: 32

約数和(自身を含む): 184005360

約数和(自身を除く): 102503000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 2456, 3070, 6140, 6637, 12280, 13274, 26548, 33185, 53096, 66370, 132740, 265480, 2037559, 4075118, 8150236, 10187795, 16300472, 20375590, 40751180, 81502360]

約数ペア:

[(1, 81502360), (2, 40751180), (4, 20375590), (5, 16300472), (8, 10187795), (10, 8150236), (20, 4075118), (40, 2037559), (307, 265480), (614, 132740), (1228, 66370), (1535, 53096), (2456, 33185), (3070, 26548), (6140, 13274), (6637, 12280)]