18980900

素因数分解:

$2^2\times 5^2\times {\mathrm{347}}^1\times {\mathrm{547}}^1$

素因数の和:908

約数の個数: 36

約数和(自身を含む): 41382768

約数和(自身を除く): 22401868

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 347, 547, 694, 1094, 1388, 1735, 2188, 2735, 3470, 5470, 6940, 8675, 10940, 13675, 17350, 27350, 34700, 54700, 189809, 379618, 759236, 949045, 1898090, 3796180, 4745225, 9490450, 18980900]

約数ペア:

[(1, 18980900), (2, 9490450), (4, 4745225), (5, 3796180), (10, 1898090), (20, 949045), (25, 759236), (50, 379618), (100, 189809), (347, 54700), (547, 34700), (694, 27350), (1094, 17350), (1388, 13675), (1735, 10940), (2188, 8675), (2735, 6940), (3470, 5470)]