30990280

素因数分解:

$2^3\times 5^1\times {\mathrm{774757}}^1$

素因数の和:774768

約数の個数: 16

約数和(自身を含む): 69728220

約数和(自身を除く): 38737940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 774757, 1549514, 3099028, 3873785, 6198056, 7747570, 15495140, 30990280]

約数ペア:

[(1, 30990280), (2, 15495140), (4, 7747570), (5, 6198056), (8, 3873785), (10, 3099028), (20, 1549514), (40, 774757)]