164480000

素因数分解:

$2^{10}\times 5^4\times {\mathrm{257}}^1$

素因数の和:297

約数の個数: 110

約数和(自身を含む): 412466406

約数和(自身を除く): 247986406

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 257, 320, 400, 500, 512, 514, 625, 640, 800, 1000, 1024, 1028, 1250, 1280, 1285, 1600, 2000, 2056, 2500, 2560, 2570, 3200, 4000, 4112, 5000, 5120, 5140, 6400, 6425, 8000, 8224, 10000, 10280, 12800, 12850, 16000, 16448, 20000, 20560, 25600, 25700, 32000, 32125, 32896, 40000, 41120, 51400, 64000, 64250, 65792, 80000, 82240, 102800, 128000, 128500, 131584, 160000, 160625, 164480, 205600, 257000, 263168, 320000, 321250, 328960, 411200, 514000, 640000, 642500, 657920, 822400, 1028000, 1285000, 1315840, 1644800, 2056000, 2570000, 3289600, 4112000, 5140000, 6579200, 8224000, 10280000, 16448000, 20560000, 32896000, 41120000, 82240000, 164480000]

約数ペア:

[(1, 164480000), (2, 82240000), (4, 41120000), (5, 32896000), (8, 20560000), (10, 16448000), (16, 10280000), (20, 8224000), (25, 6579200), (32, 5140000), (40, 4112000), (50, 3289600), (64, 2570000), (80, 2056000), (100, 1644800), (125, 1315840), (128, 1285000), (160, 1028000), (200, 822400), (250, 657920), (256, 642500), (257, 640000), (320, 514000), (400, 411200), (500, 328960), (512, 321250), (514, 320000), (625, 263168), (640, 257000), (800, 205600), (1000, 164480), (1024, 160625), (1028, 160000), (1250, 131584), (1280, 128500), (1285, 128000), (1600, 102800), (2000, 82240), (2056, 80000), (2500, 65792), (2560, 64250), (2570, 64000), (3200, 51400), (4000, 41120), (4112, 40000), (5000, 32896), (5120, 32125), (5140, 32000), (6400, 25700), (6425, 25600), (8000, 20560), (8224, 20000), (10000, 16448), (10280, 16000), (12800, 12850)]