879494680

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{111611}}^1$

素因数の和:111819

約数の個数: 32

約数和(自身を含む): 1988925840

約数和(自身を除く): 1109431160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 111611, 223222, 446444, 558055, 892888, 1116110, 2232220, 4464440, 21987367, 43974734, 87949468, 109936835, 175898936, 219873670, 439747340, 879494680]

約数ペア:

[(1, 879494680), (2, 439747340), (4, 219873670), (5, 175898936), (8, 109936835), (10, 87949468), (20, 43974734), (40, 21987367), (197, 4464440), (394, 2232220), (788, 1116110), (985, 892888), (1576, 558055), (1970, 446444), (3940, 223222), (7880, 111611)]