20218195880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29732641}}^1$

素因数の和:29732669

約数の個数: 32

約数和(自身を含む): 48166880040

約数和(自身を除く): 27948684160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 29732641, 59465282, 118930564, 148663205, 237861128, 297326410, 505454897, 594652820, 1010909794, 1189305640, 2021819588, 2527274485, 4043639176, 5054548970, 10109097940, 20218195880]

約数ペア:

[(1, 20218195880), (2, 10109097940), (4, 5054548970), (5, 4043639176), (8, 2527274485), (10, 2021819588), (17, 1189305640), (20, 1010909794), (34, 594652820), (40, 505454897), (68, 297326410), (85, 237861128), (136, 148663205), (170, 118930564), (340, 59465282), (680, 29732641)]