18555280

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1693}}^1$

素因数の和:1843

約数の個数: 40

約数和(自身を含む): 43481592

約数和(自身を除く): 24926312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 274, 548, 685, 1096, 1370, 1693, 2192, 2740, 3386, 5480, 6772, 8465, 10960, 13544, 16930, 27088, 33860, 67720, 135440, 231941, 463882, 927764, 1159705, 1855528, 2319410, 3711056, 4638820, 9277640, 18555280]

約数ペア:

[(1, 18555280), (2, 9277640), (4, 4638820), (5, 3711056), (8, 2319410), (10, 1855528), (16, 1159705), (20, 927764), (40, 463882), (80, 231941), (137, 135440), (274, 67720), (548, 33860), (685, 27088), (1096, 16930), (1370, 13544), (1693, 10960), (2192, 8465), (2740, 6772), (3386, 5480)]