19704320

素因数分解:

$2^9\times 5^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:245

約数の個数: 80

約数和(自身を含む): 48612960

約数和(自身を除く): 28908640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 179, 215, 256, 320, 344, 358, 430, 512, 640, 688, 716, 860, 895, 1280, 1376, 1432, 1720, 1790, 2560, 2752, 2864, 3440, 3580, 5504, 5728, 6880, 7160, 7697, 11008, 11456, 13760, 14320, 15394, 22016, 22912, 27520, 28640, 30788, 38485, 45824, 55040, 57280, 61576, 76970, 91648, 110080, 114560, 123152, 153940, 229120, 246304, 307880, 458240, 492608, 615760, 985216, 1231520, 1970432, 2463040, 3940864, 4926080, 9852160, 19704320]

約数ペア:

[(1, 19704320), (2, 9852160), (4, 4926080), (5, 3940864), (8, 2463040), (10, 1970432), (16, 1231520), (20, 985216), (32, 615760), (40, 492608), (43, 458240), (64, 307880), (80, 246304), (86, 229120), (128, 153940), (160, 123152), (172, 114560), (179, 110080), (215, 91648), (256, 76970), (320, 61576), (344, 57280), (358, 55040), (430, 45824), (512, 38485), (640, 30788), (688, 28640), (716, 27520), (860, 22912), (895, 22016), (1280, 15394), (1376, 14320), (1432, 13760), (1720, 11456), (1790, 11008), (2560, 7697), (2752, 7160), (2864, 6880), (3440, 5728), (3580, 5504)]