156637760

素因数分解:

$2^6\times 5^1\times {\mathrm{489493}}^1$

素因数の和:489510

約数の個数: 28

約数和(自身を含む): 372994428

約数和(自身を除く): 216356668

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 489493, 978986, 1957972, 2447465, 3915944, 4894930, 7831888, 9789860, 15663776, 19579720, 31327552, 39159440, 78318880, 156637760]

約数ペア:

[(1, 156637760), (2, 78318880), (4, 39159440), (5, 31327552), (8, 19579720), (10, 15663776), (16, 9789860), (20, 7831888), (32, 4894930), (40, 3915944), (64, 2447465), (80, 1957972), (160, 978986), (320, 489493)]