7878740

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{1867}}^1$

素因数の和:2087

約数の個数: 24

約数和(自身を含む): 16632672

約数和(自身を除く): 8753932

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 1867, 2110, 3734, 4220, 7468, 9335, 18670, 37340, 393937, 787874, 1575748, 1969685, 3939370, 7878740]

約数ペア:

[(1, 7878740), (2, 3939370), (4, 1969685), (5, 1575748), (10, 787874), (20, 393937), (211, 37340), (422, 18670), (844, 9335), (1055, 7468), (1867, 4220), (2110, 3734)]