201915520

素因数分解:

$2^7\times 5^1\times {\mathrm{315493}}^1$

素因数の和:315512

約数の個数: 32

約数和(自身を含む): 482705820

約数和(自身を除く): 280790300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 315493, 630986, 1261972, 1577465, 2523944, 3154930, 5047888, 6309860, 10095776, 12619720, 20191552, 25239440, 40383104, 50478880, 100957760, 201915520]

約数ペア:

[(1, 201915520), (2, 100957760), (4, 50478880), (5, 40383104), (8, 25239440), (10, 20191552), (16, 12619720), (20, 10095776), (32, 6309860), (40, 5047888), (64, 3154930), (80, 2523944), (128, 1577465), (160, 1261972), (320, 630986), (640, 315493)]