208960000

素因数分解:

$2^9\times 5^4\times {\mathrm{653}}^1$

素因数の和:691

約数の個数: 100

約数和(自身を含む): 522521802

約数和(自身を除く): 313561802

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 512, 625, 640, 653, 800, 1000, 1250, 1280, 1306, 1600, 2000, 2500, 2560, 2612, 3200, 3265, 4000, 5000, 5224, 6400, 6530, 8000, 10000, 10448, 12800, 13060, 16000, 16325, 20000, 20896, 26120, 32000, 32650, 40000, 41792, 52240, 64000, 65300, 80000, 81625, 83584, 104480, 130600, 160000, 163250, 167168, 208960, 261200, 320000, 326500, 334336, 408125, 417920, 522400, 653000, 816250, 835840, 1044800, 1306000, 1632500, 1671680, 2089600, 2612000, 3265000, 4179200, 5224000, 6530000, 8358400, 10448000, 13060000, 20896000, 26120000, 41792000, 52240000, 104480000, 208960000]

約数ペア:

[(1, 208960000), (2, 104480000), (4, 52240000), (5, 41792000), (8, 26120000), (10, 20896000), (16, 13060000), (20, 10448000), (25, 8358400), (32, 6530000), (40, 5224000), (50, 4179200), (64, 3265000), (80, 2612000), (100, 2089600), (125, 1671680), (128, 1632500), (160, 1306000), (200, 1044800), (250, 835840), (256, 816250), (320, 653000), (400, 522400), (500, 417920), (512, 408125), (625, 334336), (640, 326500), (653, 320000), (800, 261200), (1000, 208960), (1250, 167168), (1280, 163250), (1306, 160000), (1600, 130600), (2000, 104480), (2500, 83584), (2560, 81625), (2612, 80000), (3200, 65300), (3265, 64000), (4000, 52240), (5000, 41792), (5224, 40000), (6400, 32650), (6530, 32000), (8000, 26120), (10000, 20896), (10448, 20000), (12800, 16325), (13060, 16000)]