80798720

素因数分解:

$2^{10}\times 5^1\times {\mathrm{43}}^1\times {\mathrm{367}}^1$

素因数の和:435

約数の個数: 88

約数和(自身を含む): 198870144

約数和(自身を除く): 118071424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 256, 320, 344, 367, 430, 512, 640, 688, 734, 860, 1024, 1280, 1376, 1468, 1720, 1835, 2560, 2752, 2936, 3440, 3670, 5120, 5504, 5872, 6880, 7340, 11008, 11744, 13760, 14680, 15781, 22016, 23488, 27520, 29360, 31562, 44032, 46976, 55040, 58720, 63124, 78905, 93952, 110080, 117440, 126248, 157810, 187904, 220160, 234880, 252496, 315620, 375808, 469760, 504992, 631240, 939520, 1009984, 1262480, 1879040, 2019968, 2524960, 4039936, 5049920, 8079872, 10099840, 16159744, 20199680, 40399360, 80798720]

約数ペア:

[(1, 80798720), (2, 40399360), (4, 20199680), (5, 16159744), (8, 10099840), (10, 8079872), (16, 5049920), (20, 4039936), (32, 2524960), (40, 2019968), (43, 1879040), (64, 1262480), (80, 1009984), (86, 939520), (128, 631240), (160, 504992), (172, 469760), (215, 375808), (256, 315620), (320, 252496), (344, 234880), (367, 220160), (430, 187904), (512, 157810), (640, 126248), (688, 117440), (734, 110080), (860, 93952), (1024, 78905), (1280, 63124), (1376, 58720), (1468, 55040), (1720, 46976), (1835, 44032), (2560, 31562), (2752, 29360), (2936, 27520), (3440, 23488), (3670, 22016), (5120, 15781), (5504, 14680), (5872, 13760), (6880, 11744), (7340, 11008)]