16280000

素因数分解:

$2^6\times 5^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1$

素因数の和:80

約数の個数: 140

約数和(自身を含む): 45229272

約数和(自身を除く): 28949272

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 37, 40, 44, 50, 55, 64, 74, 80, 88, 100, 110, 125, 148, 160, 176, 185, 200, 220, 250, 275, 296, 320, 352, 370, 400, 407, 440, 500, 550, 592, 625, 704, 740, 800, 814, 880, 925, 1000, 1100, 1184, 1250, 1375, 1480, 1600, 1628, 1760, 1850, 2000, 2035, 2200, 2368, 2500, 2750, 2960, 3256, 3520, 3700, 4000, 4070, 4400, 4625, 5000, 5500, 5920, 6512, 6875, 7400, 8000, 8140, 8800, 9250, 10000, 10175, 11000, 11840, 13024, 13750, 14800, 16280, 17600, 18500, 20000, 20350, 22000, 23125, 26048, 27500, 29600, 32560, 37000, 40000, 40700, 44000, 46250, 50875, 55000, 59200, 65120, 74000, 81400, 88000, 92500, 101750, 110000, 130240, 148000, 162800, 185000, 203500, 220000, 254375, 296000, 325600, 370000, 407000, 440000, 508750, 651200, 740000, 814000, 1017500, 1480000, 1628000, 2035000, 3256000, 4070000, 8140000, 16280000]

約数ペア:

[(1, 16280000), (2, 8140000), (4, 4070000), (5, 3256000), (8, 2035000), (10, 1628000), (11, 1480000), (16, 1017500), (20, 814000), (22, 740000), (25, 651200), (32, 508750), (37, 440000), (40, 407000), (44, 370000), (50, 325600), (55, 296000), (64, 254375), (74, 220000), (80, 203500), (88, 185000), (100, 162800), (110, 148000), (125, 130240), (148, 110000), (160, 101750), (176, 92500), (185, 88000), (200, 81400), (220, 74000), (250, 65120), (275, 59200), (296, 55000), (320, 50875), (352, 46250), (370, 44000), (400, 40700), (407, 40000), (440, 37000), (500, 32560), (550, 29600), (592, 27500), (625, 26048), (704, 23125), (740, 22000), (800, 20350), (814, 20000), (880, 18500), (925, 17600), (1000, 16280), (1100, 14800), (1184, 13750), (1250, 13024), (1375, 11840), (1480, 11000), (1600, 10175), (1628, 10000), (1760, 9250), (1850, 8800), (2000, 8140), (2035, 8000), (2200, 7400), (2368, 6875), (2500, 6512), (2750, 5920), (2960, 5500), (3256, 5000), (3520, 4625), (3700, 4400), (4000, 4070)]