18470720

素因数分解:

$2^6\times 5^1\times {\mathrm{197}}^1\times {\mathrm{293}}^1$

素因数の和:507

約数の個数: 56

約数和(自身を含む): 44357544

約数和(自身を除く): 25886824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 197, 293, 320, 394, 586, 788, 985, 1172, 1465, 1576, 1970, 2344, 2930, 3152, 3940, 4688, 5860, 6304, 7880, 9376, 11720, 12608, 15760, 18752, 23440, 31520, 46880, 57721, 63040, 93760, 115442, 230884, 288605, 461768, 577210, 923536, 1154420, 1847072, 2308840, 3694144, 4617680, 9235360, 18470720]

約数ペア:

[(1, 18470720), (2, 9235360), (4, 4617680), (5, 3694144), (8, 2308840), (10, 1847072), (16, 1154420), (20, 923536), (32, 577210), (40, 461768), (64, 288605), (80, 230884), (160, 115442), (197, 93760), (293, 63040), (320, 57721), (394, 46880), (586, 31520), (788, 23440), (985, 18752), (1172, 15760), (1465, 12608), (1576, 11720), (1970, 9376), (2344, 7880), (2930, 6304), (3152, 5860), (3940, 4688)]