81145995

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{20887}}^1$

素因数の和:20939

約数の個数: 32

約数和(自身を含む): 152398848

約数和(自身を除く): 71252853

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 105, 111, 185, 259, 555, 777, 1295, 3885, 20887, 62661, 104435, 146209, 313305, 438627, 731045, 772819, 2193135, 2318457, 3864095, 5409733, 11592285, 16229199, 27048665, 81145995]

約数ペア:

[(1, 81145995), (3, 27048665), (5, 16229199), (7, 11592285), (15, 5409733), (21, 3864095), (35, 2318457), (37, 2193135), (105, 772819), (111, 731045), (185, 438627), (259, 313305), (555, 146209), (777, 104435), (1295, 62661), (3885, 20887)]