4991440

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1451}}^1$

素因数の和:1507

約数の個数: 40

約数和(自身を含む): 11883168

約数和(自身を除く): 6891728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1451, 1720, 2902, 3440, 5804, 7255, 11608, 14510, 23216, 29020, 58040, 62393, 116080, 124786, 249572, 311965, 499144, 623930, 998288, 1247860, 2495720, 4991440]

約数ペア:

[(1, 4991440), (2, 2495720), (4, 1247860), (5, 998288), (8, 623930), (10, 499144), (16, 311965), (20, 249572), (40, 124786), (43, 116080), (80, 62393), (86, 58040), (172, 29020), (215, 23216), (344, 14510), (430, 11608), (688, 7255), (860, 5804), (1451, 3440), (1720, 2902)]