2021900000

素因数分解:

$2^5\times 5^5\times {\mathrm{20219}}^1$

素因数の和:20254

約数の個数: 72

約数和(自身を含む): 4975697160

約数和(自身を除く): 2953797160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 800, 1000, 1250, 2000, 2500, 3125, 4000, 5000, 6250, 10000, 12500, 20000, 20219, 25000, 40438, 50000, 80876, 100000, 101095, 161752, 202190, 323504, 404380, 505475, 647008, 808760, 1010950, 1617520, 2021900, 2527375, 3235040, 4043800, 5054750, 8087600, 10109500, 12636875, 16175200, 20219000, 25273750, 40438000, 50547500, 63184375, 80876000, 101095000, 126368750, 202190000, 252737500, 404380000, 505475000, 1010950000, 2021900000]

約数ペア:

[(1, 2021900000), (2, 1010950000), (4, 505475000), (5, 404380000), (8, 252737500), (10, 202190000), (16, 126368750), (20, 101095000), (25, 80876000), (32, 63184375), (40, 50547500), (50, 40438000), (80, 25273750), (100, 20219000), (125, 16175200), (160, 12636875), (200, 10109500), (250, 8087600), (400, 5054750), (500, 4043800), (625, 3235040), (800, 2527375), (1000, 2021900), (1250, 1617520), (2000, 1010950), (2500, 808760), (3125, 647008), (4000, 505475), (5000, 404380), (6250, 323504), (10000, 202190), (12500, 161752), (20000, 101095), (20219, 100000), (25000, 80876), (40438, 50000)]