30571280

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8887}}^1$

素因数の和:8943

約数の個数: 40

約数和(自身を含む): 72739392

約数和(自身を除く): 42168112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 8887, 17774, 35548, 44435, 71096, 88870, 142192, 177740, 355480, 382141, 710960, 764282, 1528564, 1910705, 3057128, 3821410, 6114256, 7642820, 15285640, 30571280]

約数ペア:

[(1, 30571280), (2, 15285640), (4, 7642820), (5, 6114256), (8, 3821410), (10, 3057128), (16, 1910705), (20, 1528564), (40, 764282), (43, 710960), (80, 382141), (86, 355480), (172, 177740), (215, 142192), (344, 88870), (430, 71096), (688, 44435), (860, 35548), (1720, 17774), (3440, 8887)]