20279900

素因数分解:

$2^2\times 5^2\times {\mathrm{202799}}^1$

素因数の和:202813

約数の個数: 18

約数和(自身を含む): 44007600

約数和(自身を除く): 23727700

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 202799, 405598, 811196, 1013995, 2027990, 4055980, 5069975, 10139950, 20279900]

約数ペア:

[(1, 20279900), (2, 10139950), (4, 5069975), (5, 4055980), (10, 2027990), (20, 1013995), (25, 811196), (50, 405598), (100, 202799)]