21770000

素因数分解:

$2^4\times 5^4\times 7^1\times {\mathrm{311}}^1$

素因数の和:346

約数の個数: 100

約数和(自身を含む): 60430656

約数和(自身を除く): 38660656

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 125, 140, 175, 200, 250, 280, 311, 350, 400, 500, 560, 622, 625, 700, 875, 1000, 1244, 1250, 1400, 1555, 1750, 2000, 2177, 2488, 2500, 2800, 3110, 3500, 4354, 4375, 4976, 5000, 6220, 7000, 7775, 8708, 8750, 10000, 10885, 12440, 14000, 15550, 17416, 17500, 21770, 24880, 31100, 34832, 35000, 38875, 43540, 54425, 62200, 70000, 77750, 87080, 108850, 124400, 155500, 174160, 194375, 217700, 272125, 311000, 388750, 435400, 544250, 622000, 777500, 870800, 1088500, 1360625, 1555000, 2177000, 2721250, 3110000, 4354000, 5442500, 10885000, 21770000]

約数ペア:

[(1, 21770000), (2, 10885000), (4, 5442500), (5, 4354000), (7, 3110000), (8, 2721250), (10, 2177000), (14, 1555000), (16, 1360625), (20, 1088500), (25, 870800), (28, 777500), (35, 622000), (40, 544250), (50, 435400), (56, 388750), (70, 311000), (80, 272125), (100, 217700), (112, 194375), (125, 174160), (140, 155500), (175, 124400), (200, 108850), (250, 87080), (280, 77750), (311, 70000), (350, 62200), (400, 54425), (500, 43540), (560, 38875), (622, 35000), (625, 34832), (700, 31100), (875, 24880), (1000, 21770), (1244, 17500), (1250, 17416), (1400, 15550), (1555, 14000), (1750, 12440), (2000, 10885), (2177, 10000), (2488, 8750), (2500, 8708), (2800, 7775), (3110, 7000), (3500, 6220), (4354, 5000), (4375, 4976)]