19902660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{331711}}^1$

素因数の和:331723

約数の個数: 24

約数和(自身を含む): 55727616

約数和(自身を除く): 35824956

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 331711, 663422, 995133, 1326844, 1658555, 1990266, 3317110, 3980532, 4975665, 6634220, 9951330, 19902660]

約数ペア:

[(1, 19902660), (2, 9951330), (3, 6634220), (4, 4975665), (5, 3980532), (6, 3317110), (10, 1990266), (12, 1658555), (15, 1326844), (20, 995133), (30, 663422), (60, 331711)]