280562009

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{809}}^1$

素因数の和:969

約数の個数: 32

約数和(自身を含む): 358525440

約数和(自身を除く): 77963431

約数列:

[1, 7, 13, 37, 91, 103, 259, 481, 721, 809, 1339, 3367, 3811, 5663, 9373, 10517, 26677, 29933, 49543, 73619, 83327, 209531, 346801, 389129, 583289, 1083251, 2723903, 3083099, 7582757, 21581693, 40080287, 280562009]

約数ペア:

[(1, 280562009), (7, 40080287), (13, 21581693), (37, 7582757), (91, 3083099), (103, 2723903), (259, 1083251), (481, 583289), (721, 389129), (809, 346801), (1339, 209531), (3367, 83327), (3811, 73619), (5663, 49543), (9373, 29933), (10517, 26677)]