9981820

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3643}}^1$

素因数の和:3789

約数の個数: 24

約数和(自身を含む): 21120624

約数和(自身を除く): 11138804

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 3643, 7286, 14572, 18215, 36430, 72860, 499091, 998182, 1996364, 2495455, 4990910, 9981820]

約数ペア:

[(1, 9981820), (2, 4990910), (4, 2495455), (5, 1996364), (10, 998182), (20, 499091), (137, 72860), (274, 36430), (548, 18215), (685, 14572), (1370, 7286), (2740, 3643)]