20512031780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53979031}}^1$

素因数の和:53979059

約数の個数: 24

約数和(自身を含む): 45342386880

約数和(自身を除く): 24830355100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 53979031, 107958062, 215916124, 269895155, 539790310, 1025601589, 1079580620, 2051203178, 4102406356, 5128007945, 10256015890, 20512031780]

約数ペア:

[(1, 20512031780), (2, 10256015890), (4, 5128007945), (5, 4102406356), (10, 2051203178), (19, 1079580620), (20, 1025601589), (38, 539790310), (76, 269895155), (95, 215916124), (190, 107958062), (380, 53979031)]