20618970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{687299}}^1$

素因数の和:687309

約数の個数: 16

約数和(自身を含む): 49485600

約数和(自身を除く): 28866630

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 687299, 1374598, 2061897, 3436495, 4123794, 6872990, 10309485, 20618970]

約数ペア:

[(1, 20618970), (2, 10309485), (3, 6872990), (5, 4123794), (6, 3436495), (10, 2061897), (15, 1374598), (30, 687299)]