68560000

素因数分解:

$2^7\times 5^4\times {\mathrm{857}}^1$

素因数の和:891

約数の個数: 80

約数和(自身を含む): 170874990

約数和(自身を除く): 102314990

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 320, 400, 500, 625, 640, 800, 857, 1000, 1250, 1600, 1714, 2000, 2500, 3200, 3428, 4000, 4285, 5000, 6856, 8000, 8570, 10000, 13712, 16000, 17140, 20000, 21425, 27424, 34280, 40000, 42850, 54848, 68560, 80000, 85700, 107125, 109696, 137120, 171400, 214250, 274240, 342800, 428500, 535625, 548480, 685600, 857000, 1071250, 1371200, 1714000, 2142500, 2742400, 3428000, 4285000, 6856000, 8570000, 13712000, 17140000, 34280000, 68560000]

約数ペア:

[(1, 68560000), (2, 34280000), (4, 17140000), (5, 13712000), (8, 8570000), (10, 6856000), (16, 4285000), (20, 3428000), (25, 2742400), (32, 2142500), (40, 1714000), (50, 1371200), (64, 1071250), (80, 857000), (100, 685600), (125, 548480), (128, 535625), (160, 428500), (200, 342800), (250, 274240), (320, 214250), (400, 171400), (500, 137120), (625, 109696), (640, 107125), (800, 85700), (857, 80000), (1000, 68560), (1250, 54848), (1600, 42850), (1714, 40000), (2000, 34280), (2500, 27424), (3200, 21425), (3428, 20000), (4000, 17140), (4285, 16000), (5000, 13712), (6856, 10000), (8000, 8570)]