78817280

素因数分解:

$2^{11}\times 5^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:249

約数の個数: 96

約数和(自身を含む): 194594400

約数和(自身を除く): 115777120

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, 1024, 1280, 1376, 1432, 1720, 1790, 2048, 2560, 2752, 2864, 3440, 3580, 5120, 5504, 5728, 6880, 7160, 7697, 10240, 11008, 11456, 13760, 14320, 15394, 22016, 22912, 27520, 28640, 30788, 38485, 44032, 45824, 55040, 57280, 61576, 76970, 88064, 91648, 110080, 114560, 123152, 153940, 183296, 220160, 229120, 246304, 307880, 366592, 440320, 458240, 492608, 615760, 916480, 985216, 1231520, 1832960, 1970432, 2463040, 3940864, 4926080, 7881728, 9852160, 15763456, 19704320, 39408640, 78817280]

約数ペア:

[(1, 78817280), (2, 39408640), (4, 19704320), (5, 15763456), (8, 9852160), (10, 7881728), (16, 4926080), (20, 3940864), (32, 2463040), (40, 1970432), (43, 1832960), (64, 1231520), (80, 985216), (86, 916480), (128, 615760), (160, 492608), (172, 458240), (179, 440320), (215, 366592), (256, 307880), (320, 246304), (344, 229120), (358, 220160), (430, 183296), (512, 153940), (640, 123152), (688, 114560), (716, 110080), (860, 91648), (895, 88064), (1024, 76970), (1280, 61576), (1376, 57280), (1432, 55040), (1720, 45824), (1790, 44032), (2048, 38485), (2560, 30788), (2752, 28640), (2864, 27520), (3440, 22912), (3580, 22016), (5120, 15394), (5504, 14320), (5728, 13760), (6880, 11456), (7160, 11008), (7697, 10240)]