20978670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{699289}}^1$

素因数の和:699299

約数の個数: 16

約数和(自身を含む): 50348880

約数和(自身を除く): 29370210

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 699289, 1398578, 2097867, 3496445, 4195734, 6992890, 10489335, 20978670]

約数ペア:

[(1, 20978670), (2, 10489335), (3, 6992890), (5, 4195734), (6, 3496445), (10, 2097867), (15, 1398578), (30, 699289)]