19594240

素因数分解:

$2^{10}\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:157

約数の個数: 88

約数和(自身を含む): 48636720

約数和(自身を除く): 29042480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 89, 128, 160, 172, 178, 215, 256, 320, 344, 356, 430, 445, 512, 640, 688, 712, 860, 890, 1024, 1280, 1376, 1424, 1720, 1780, 2560, 2752, 2848, 3440, 3560, 3827, 5120, 5504, 5696, 6880, 7120, 7654, 11008, 11392, 13760, 14240, 15308, 19135, 22016, 22784, 27520, 28480, 30616, 38270, 44032, 45568, 55040, 56960, 61232, 76540, 91136, 110080, 113920, 122464, 153080, 220160, 227840, 244928, 306160, 455680, 489856, 612320, 979712, 1224640, 1959424, 2449280, 3918848, 4898560, 9797120, 19594240]

約数ペア:

[(1, 19594240), (2, 9797120), (4, 4898560), (5, 3918848), (8, 2449280), (10, 1959424), (16, 1224640), (20, 979712), (32, 612320), (40, 489856), (43, 455680), (64, 306160), (80, 244928), (86, 227840), (89, 220160), (128, 153080), (160, 122464), (172, 113920), (178, 110080), (215, 91136), (256, 76540), (320, 61232), (344, 56960), (356, 55040), (430, 45568), (445, 44032), (512, 38270), (640, 30616), (688, 28480), (712, 27520), (860, 22784), (890, 22016), (1024, 19135), (1280, 15308), (1376, 14240), (1424, 13760), (1720, 11392), (1780, 11008), (2560, 7654), (2752, 7120), (2848, 6880), (3440, 5696), (3560, 5504), (3827, 5120)]