214977640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{124987}}^1$

素因数の和:125041

約数の個数: 32

約数和(自身を含む): 494952480

約数和(自身を除く): 279974840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 124987, 249974, 499948, 624935, 999896, 1249870, 2499740, 4999480, 5374441, 10748882, 21497764, 26872205, 42995528, 53744410, 107488820, 214977640]

約数ペア:

[(1, 214977640), (2, 107488820), (4, 53744410), (5, 42995528), (8, 26872205), (10, 21497764), (20, 10748882), (40, 5374441), (43, 4999480), (86, 2499740), (172, 1249870), (215, 999896), (344, 624935), (430, 499948), (860, 249974), (1720, 124987)]