20408873180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53707561}}^1$

素因数の和:53707589

約数の個数: 24

約数和(自身を含む): 45114352080

約数和(自身を除く): 24705478900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 53707561, 107415122, 214830244, 268537805, 537075610, 1020443659, 1074151220, 2040887318, 4081774636, 5102218295, 10204436590, 20408873180]

約数ペア:

[(1, 20408873180), (2, 10204436590), (4, 5102218295), (5, 4081774636), (10, 2040887318), (19, 1074151220), (20, 1020443659), (38, 537075610), (76, 268537805), (95, 214830244), (190, 107415122), (380, 53707561)]