216802660

素因数分解:

$2^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{22259}}^1$

素因数の和:22755

約数の個数: 24

約数和(自身を含む): 456240960

約数和(自身を除く): 239438300

約数列:

[1, 2, 4, 5, 10, 20, 487, 974, 1948, 2435, 4870, 9740, 22259, 44518, 89036, 111295, 222590, 445180, 10840133, 21680266, 43360532, 54200665, 108401330, 216802660]

約数ペア:

[(1, 216802660), (2, 108401330), (4, 54200665), (5, 43360532), (10, 21680266), (20, 10840133), (487, 445180), (974, 222590), (1948, 111295), (2435, 89036), (4870, 44518), (9740, 22259)]