81965020

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{141319}}^1$

素因数の和:141357

約数の個数: 24

約数和(自身を含む): 178063200

約数和(自身を除く): 96098180

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 141319, 282638, 565276, 706595, 1413190, 2826380, 4098251, 8196502, 16393004, 20491255, 40982510, 81965020]

約数ペア:

[(1, 81965020), (2, 40982510), (4, 20491255), (5, 16393004), (10, 8196502), (20, 4098251), (29, 2826380), (58, 1413190), (116, 706595), (145, 565276), (290, 282638), (580, 141319)]