18854000

素因数分解:

$2^4\times 5^3\times {\mathrm{11}}^1\times {\mathrm{857}}^1$

素因数の和:891

約数の個数: 80

約数和(自身を含む): 49791456

約数和(自身を除く): 30937456

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 110, 125, 176, 200, 220, 250, 275, 400, 440, 500, 550, 857, 880, 1000, 1100, 1375, 1714, 2000, 2200, 2750, 3428, 4285, 4400, 5500, 6856, 8570, 9427, 11000, 13712, 17140, 18854, 21425, 22000, 34280, 37708, 42850, 47135, 68560, 75416, 85700, 94270, 107125, 150832, 171400, 188540, 214250, 235675, 342800, 377080, 428500, 471350, 754160, 857000, 942700, 1178375, 1714000, 1885400, 2356750, 3770800, 4713500, 9427000, 18854000]

約数ペア:

[(1, 18854000), (2, 9427000), (4, 4713500), (5, 3770800), (8, 2356750), (10, 1885400), (11, 1714000), (16, 1178375), (20, 942700), (22, 857000), (25, 754160), (40, 471350), (44, 428500), (50, 377080), (55, 342800), (80, 235675), (88, 214250), (100, 188540), (110, 171400), (125, 150832), (176, 107125), (200, 94270), (220, 85700), (250, 75416), (275, 68560), (400, 47135), (440, 42850), (500, 37708), (550, 34280), (857, 22000), (880, 21425), (1000, 18854), (1100, 17140), (1375, 13712), (1714, 11000), (2000, 9427), (2200, 8570), (2750, 6856), (3428, 5500), (4285, 4400)]