20281180

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{27407}}^1$

素因数の和:27453

約数の個数: 24

約数和(自身を含む): 43743168

約数和(自身を除く): 23461988

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 27407, 54814, 109628, 137035, 274070, 548140, 1014059, 2028118, 4056236, 5070295, 10140590, 20281180]

約数ペア:

[(1, 20281180), (2, 10140590), (4, 5070295), (5, 4056236), (10, 2028118), (20, 1014059), (37, 548140), (74, 274070), (148, 137035), (185, 109628), (370, 54814), (740, 27407)]