19905020

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{34319}}^1$

素因数の和:34357

約数の個数: 24

約数和(自身を含む): 43243200

約数和(自身を除く): 23338180

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 34319, 68638, 137276, 171595, 343190, 686380, 995251, 1990502, 3981004, 4976255, 9952510, 19905020]

約数ペア:

[(1, 19905020), (2, 9952510), (4, 4976255), (5, 3981004), (10, 1990502), (20, 995251), (29, 686380), (58, 343190), (116, 171595), (145, 137276), (290, 68638), (580, 34319)]