7991780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{21031}}^1$

素因数の和:21059

約数の個数: 24

約数和(自身を含む): 17666880

約数和(自身を除く): 9675100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 21031, 42062, 84124, 105155, 210310, 399589, 420620, 799178, 1598356, 1997945, 3995890, 7991780]

約数ペア:

[(1, 7991780), (2, 3995890), (4, 1997945), (5, 1598356), (10, 799178), (19, 420620), (20, 399589), (38, 210310), (76, 105155), (95, 84124), (190, 42062), (380, 21031)]