19291520

素因数分解:

$2^7\times 5^1\times {\mathrm{43}}^1\times {\mathrm{701}}^1$

素因数の和:763

約数の個数: 64

約数和(自身を含む): 47258640

約数和(自身を除く): 27967120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 320, 344, 430, 640, 688, 701, 860, 1376, 1402, 1720, 2752, 2804, 3440, 3505, 5504, 5608, 6880, 7010, 11216, 13760, 14020, 22432, 27520, 28040, 30143, 44864, 56080, 60286, 89728, 112160, 120572, 150715, 224320, 241144, 301430, 448640, 482288, 602860, 964576, 1205720, 1929152, 2411440, 3858304, 4822880, 9645760, 19291520]

約数ペア:

[(1, 19291520), (2, 9645760), (4, 4822880), (5, 3858304), (8, 2411440), (10, 1929152), (16, 1205720), (20, 964576), (32, 602860), (40, 482288), (43, 448640), (64, 301430), (80, 241144), (86, 224320), (128, 150715), (160, 120572), (172, 112160), (215, 89728), (320, 60286), (344, 56080), (430, 44864), (640, 30143), (688, 28040), (701, 27520), (860, 22432), (1376, 14020), (1402, 13760), (1720, 11216), (2752, 7010), (2804, 6880), (3440, 5608), (3505, 5504)]