19724970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{657499}}^1$

素因数の和:657509

約数の個数: 16

約数和(自身を含む): 47340000

約数和(自身を除く): 27615030

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 657499, 1314998, 1972497, 3287495, 3944994, 6574990, 9862485, 19724970]

約数ペア:

[(1, 19724970), (2, 9862485), (3, 6574990), (5, 3944994), (6, 3287495), (10, 1972497), (15, 1314998), (30, 657499)]