18670360

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3407}}^1$

素因数の和:3555

約数の個数: 32

約数和(自身を含む): 42327360

約数和(自身を除く): 23657000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 3407, 5480, 6814, 13628, 17035, 27256, 34070, 68140, 136280, 466759, 933518, 1867036, 2333795, 3734072, 4667590, 9335180, 18670360]

約数ペア:

[(1, 18670360), (2, 9335180), (4, 4667590), (5, 3734072), (8, 2333795), (10, 1867036), (20, 933518), (40, 466759), (137, 136280), (274, 68140), (548, 34070), (685, 27256), (1096, 17035), (1370, 13628), (2740, 6814), (3407, 5480)]