214128680

素因数分解:

$2^3\times 5^1\times {\mathrm{1289}}^1\times {\mathrm{4153}}^1$

素因数の和:5453

約数の個数: 32

約数和(自身を含む): 482279400

約数和(自身を除く): 268150720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1289, 2578, 4153, 5156, 6445, 8306, 10312, 12890, 16612, 20765, 25780, 33224, 41530, 51560, 83060, 166120, 5353217, 10706434, 21412868, 26766085, 42825736, 53532170, 107064340, 214128680]

約数ペア:

[(1, 214128680), (2, 107064340), (4, 53532170), (5, 42825736), (8, 26766085), (10, 21412868), (20, 10706434), (40, 5353217), (1289, 166120), (2578, 83060), (4153, 51560), (5156, 41530), (6445, 33224), (8306, 25780), (10312, 20765), (12890, 16612)]