19652090

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{311}}^1$

素因数の和:478

約数の個数: 32

約数和(自身を含む): 36391680

約数和(自身を除く): 16739590

約数列:

[1, 2, 5, 10, 71, 89, 142, 178, 311, 355, 445, 622, 710, 890, 1555, 3110, 6319, 12638, 22081, 27679, 31595, 44162, 55358, 63190, 110405, 138395, 220810, 276790, 1965209, 3930418, 9826045, 19652090]

約数ペア:

[(1, 19652090), (2, 9826045), (5, 3930418), (10, 1965209), (71, 276790), (89, 220810), (142, 138395), (178, 110405), (311, 63190), (355, 55358), (445, 44162), (622, 31595), (710, 27679), (890, 22081), (1555, 12638), (3110, 6319)]