217738360

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{111091}}^1$

素因数の和:111116

約数の個数: 48

約数和(自身を含む): 569901960

約数和(自身を除く): 352163600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 111091, 222182, 444364, 555455, 777637, 888728, 1110910, 1555274, 2221820, 3110548, 3888185, 4443640, 5443459, 6221096, 7776370, 10886918, 15552740, 21773836, 27217295, 31105480, 43547672, 54434590, 108869180, 217738360]

約数ペア:

[(1, 217738360), (2, 108869180), (4, 54434590), (5, 43547672), (7, 31105480), (8, 27217295), (10, 21773836), (14, 15552740), (20, 10886918), (28, 7776370), (35, 6221096), (40, 5443459), (49, 4443640), (56, 3888185), (70, 3110548), (98, 2221820), (140, 1555274), (196, 1110910), (245, 888728), (280, 777637), (392, 555455), (490, 444364), (980, 222182), (1960, 111091)]