81989522

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{30389}}^1$

素因数の和:30481

約数の個数: 16

約数和(自身を含む): 131284800

約数和(自身を除く): 49295278

約数列:

[1, 2, 19, 38, 71, 142, 1349, 2698, 30389, 60778, 577391, 1154782, 2157619, 4315238, 40994761, 81989522]

約数ペア:

[(1, 81989522), (2, 40994761), (19, 4315238), (38, 2157619), (71, 1154782), (142, 577391), (1349, 60778), (2698, 30389)]