27920000

素因数分解:

$2^7\times 5^4\times {\mathrm{349}}^1$

素因数の和:383

約数の個数: 80

約数和(自身を含む): 69704250

約数和(自身を除く): 41784250

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 320, 349, 400, 500, 625, 640, 698, 800, 1000, 1250, 1396, 1600, 1745, 2000, 2500, 2792, 3200, 3490, 4000, 5000, 5584, 6980, 8000, 8725, 10000, 11168, 13960, 16000, 17450, 20000, 22336, 27920, 34900, 40000, 43625, 44672, 55840, 69800, 80000, 87250, 111680, 139600, 174500, 218125, 223360, 279200, 349000, 436250, 558400, 698000, 872500, 1116800, 1396000, 1745000, 2792000, 3490000, 5584000, 6980000, 13960000, 27920000]

約数ペア:

[(1, 27920000), (2, 13960000), (4, 6980000), (5, 5584000), (8, 3490000), (10, 2792000), (16, 1745000), (20, 1396000), (25, 1116800), (32, 872500), (40, 698000), (50, 558400), (64, 436250), (80, 349000), (100, 279200), (125, 223360), (128, 218125), (160, 174500), (200, 139600), (250, 111680), (320, 87250), (349, 80000), (400, 69800), (500, 55840), (625, 44672), (640, 43625), (698, 40000), (800, 34900), (1000, 27920), (1250, 22336), (1396, 20000), (1600, 17450), (1745, 16000), (2000, 13960), (2500, 11168), (2792, 10000), (3200, 8725), (3490, 8000), (4000, 6980), (5000, 5584)]