19997940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{333299}}^1$

素因数の和:333311

約数の個数: 24

約数和(自身を含む): 55994400

約数和(自身を除く): 35996460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 333299, 666598, 999897, 1333196, 1666495, 1999794, 3332990, 3999588, 4999485, 6665980, 9998970, 19997940]

約数ペア:

[(1, 19997940), (2, 9998970), (3, 6665980), (4, 4999485), (5, 3999588), (6, 3332990), (10, 1999794), (12, 1666495), (15, 1333196), (20, 999897), (30, 666598), (60, 333299)]