20618700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{68729}}^1$

素因数の和:68746

約数の個数: 36

約数和(自身を含む): 59657640

約数和(自身を除く): 39038940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 300, 68729, 137458, 206187, 274916, 343645, 412374, 687290, 824748, 1030935, 1374580, 1718225, 2061870, 3436450, 4123740, 5154675, 6872900, 10309350, 20618700]

約数ペア:

[(1, 20618700), (2, 10309350), (3, 6872900), (4, 5154675), (5, 4123740), (6, 3436450), (10, 2061870), (12, 1718225), (15, 1374580), (20, 1030935), (25, 824748), (30, 687290), (50, 412374), (60, 343645), (75, 274916), (100, 206187), (150, 137458), (300, 68729)]