248839280

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{72337}}^1$

素因数の和:72393

約数の個数: 40

約数和(自身を含む): 592014192

約数和(自身を除く): 343174912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 72337, 144674, 289348, 361685, 578696, 723370, 1157392, 1446740, 2893480, 3110491, 5786960, 6220982, 12441964, 15552455, 24883928, 31104910, 49767856, 62209820, 124419640, 248839280]

約数ペア:

[(1, 248839280), (2, 124419640), (4, 62209820), (5, 49767856), (8, 31104910), (10, 24883928), (16, 15552455), (20, 12441964), (40, 6220982), (43, 5786960), (80, 3110491), (86, 2893480), (172, 1446740), (215, 1157392), (344, 723370), (430, 578696), (688, 361685), (860, 289348), (1720, 144674), (3440, 72337)]