81132800

素因数分解:

$2^8\times 5^2\times 7^1\times {\mathrm{1811}}^1$

素因数の和:1844

約数の個数: 108

約数和(自身を含む): 229631136

約数和(自身を除く): 148498336

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 100, 112, 128, 140, 160, 175, 200, 224, 256, 280, 320, 350, 400, 448, 560, 640, 700, 800, 896, 1120, 1280, 1400, 1600, 1792, 1811, 2240, 2800, 3200, 3622, 4480, 5600, 6400, 7244, 8960, 9055, 11200, 12677, 14488, 18110, 22400, 25354, 28976, 36220, 44800, 45275, 50708, 57952, 63385, 72440, 90550, 101416, 115904, 126770, 144880, 181100, 202832, 231808, 253540, 289760, 316925, 362200, 405664, 463616, 507080, 579520, 633850, 724400, 811328, 1014160, 1159040, 1267700, 1448800, 1622656, 2028320, 2318080, 2535400, 2897600, 3245312, 4056640, 5070800, 5795200, 8113280, 10141600, 11590400, 16226560, 20283200, 40566400, 81132800]

約数ペア:

[(1, 81132800), (2, 40566400), (4, 20283200), (5, 16226560), (7, 11590400), (8, 10141600), (10, 8113280), (14, 5795200), (16, 5070800), (20, 4056640), (25, 3245312), (28, 2897600), (32, 2535400), (35, 2318080), (40, 2028320), (50, 1622656), (56, 1448800), (64, 1267700), (70, 1159040), (80, 1014160), (100, 811328), (112, 724400), (128, 633850), (140, 579520), (160, 507080), (175, 463616), (200, 405664), (224, 362200), (256, 316925), (280, 289760), (320, 253540), (350, 231808), (400, 202832), (448, 181100), (560, 144880), (640, 126770), (700, 115904), (800, 101416), (896, 90550), (1120, 72440), (1280, 63385), (1400, 57952), (1600, 50708), (1792, 45275), (1811, 44800), (2240, 36220), (2800, 28976), (3200, 25354), (3622, 22400), (4480, 18110), (5600, 14488), (6400, 12677), (7244, 11200), (8960, 9055)]