18139990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{4457}}^1$

素因数の和:4512

約数の個数: 32

約数和(自身を含む): 36591264

約数和(自身を除く): 18451274

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 74, 110, 185, 370, 407, 814, 2035, 4070, 4457, 8914, 22285, 44570, 49027, 98054, 164909, 245135, 329818, 490270, 824545, 1649090, 1813999, 3627998, 9069995, 18139990]

約数ペア:

[(1, 18139990), (2, 9069995), (5, 3627998), (10, 1813999), (11, 1649090), (22, 824545), (37, 490270), (55, 329818), (74, 245135), (110, 164909), (185, 98054), (370, 49027), (407, 44570), (814, 22285), (2035, 8914), (4070, 4457)]