81385208

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{569}}^1\times {\mathrm{941}}^1$

素因数の和:1535

約数の個数: 32

約数和(自身を含む): 161082000

約数和(自身を除く): 79696792

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 569, 941, 1138, 1882, 2276, 3764, 4552, 7528, 10811, 17879, 21622, 35758, 43244, 71516, 86488, 143032, 535429, 1070858, 2141716, 4283432, 10173151, 20346302, 40692604, 81385208]

約数ペア:

[(1, 81385208), (2, 40692604), (4, 20346302), (8, 10173151), (19, 4283432), (38, 2141716), (76, 1070858), (152, 535429), (569, 143032), (941, 86488), (1138, 71516), (1882, 43244), (2276, 35758), (3764, 21622), (4552, 17879), (7528, 10811)]