10280000

素因数分解:

$2^6\times 5^4\times {\mathrm{257}}^1$

素因数の和:289

約数の個数: 70

約数和(自身を含む): 25590246

約数和(自身を除く): 15310246

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 257, 320, 400, 500, 514, 625, 800, 1000, 1028, 1250, 1285, 1600, 2000, 2056, 2500, 2570, 4000, 4112, 5000, 5140, 6425, 8000, 8224, 10000, 10280, 12850, 16448, 20000, 20560, 25700, 32125, 40000, 41120, 51400, 64250, 82240, 102800, 128500, 160625, 205600, 257000, 321250, 411200, 514000, 642500, 1028000, 1285000, 2056000, 2570000, 5140000, 10280000]

約数ペア:

[(1, 10280000), (2, 5140000), (4, 2570000), (5, 2056000), (8, 1285000), (10, 1028000), (16, 642500), (20, 514000), (25, 411200), (32, 321250), (40, 257000), (50, 205600), (64, 160625), (80, 128500), (100, 102800), (125, 82240), (160, 64250), (200, 51400), (250, 41120), (257, 40000), (320, 32125), (400, 25700), (500, 20560), (514, 20000), (625, 16448), (800, 12850), (1000, 10280), (1028, 10000), (1250, 8224), (1285, 8000), (1600, 6425), (2000, 5140), (2056, 5000), (2500, 4112), (2570, 4000)]