81245885

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{727}}^1$

素因数の和:873

約数の個数: 32

約数和(自身を含む): 116293632

約数和(自身を除く): 35047747

約数列:

[1, 5, 7, 31, 35, 103, 155, 217, 515, 721, 727, 1085, 3193, 3605, 3635, 5089, 15965, 22351, 22537, 25445, 74881, 111755, 112685, 157759, 374405, 524167, 788795, 2321311, 2620835, 11606555, 16249177, 81245885]

約数ペア:

[(1, 81245885), (5, 16249177), (7, 11606555), (31, 2620835), (35, 2321311), (103, 788795), (155, 524167), (217, 374405), (515, 157759), (721, 112685), (727, 111755), (1085, 74881), (3193, 25445), (3605, 22537), (3635, 22351), (5089, 15965)]