390976640

素因数分解:

$2^7\times 5^1\times {\mathrm{43}}^1\times {\mathrm{14207}}^1$

素因数の和:14269

約数の個数: 64

約数和(自身を含む): 956482560

約数和(自身を除く): 565505920

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, 860, 1376, 1720, 2752, 3440, 5504, 6880, 13760, 14207, 27520, 28414, 56828, 71035, 113656, 142070, 227312, 284140, 454624, 568280, 610901, 909248, 1136560, 1221802, 1818496, 2273120, 2443604, 3054505, 4546240, 4887208, 6109010, 9092480, 9774416, 12218020, 19548832, 24436040, 39097664, 48872080, 78195328, 97744160, 195488320, 390976640]

約数ペア:

[(1, 390976640), (2, 195488320), (4, 97744160), (5, 78195328), (8, 48872080), (10, 39097664), (16, 24436040), (20, 19548832), (32, 12218020), (40, 9774416), (43, 9092480), (64, 6109010), (80, 4887208), (86, 4546240), (128, 3054505), (160, 2443604), (172, 2273120), (215, 1818496), (320, 1221802), (344, 1136560), (430, 909248), (640, 610901), (688, 568280), (860, 454624), (1376, 284140), (1720, 227312), (2752, 142070), (3440, 113656), (5504, 71035), (6880, 56828), (13760, 28414), (14207, 27520)]