420199340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1909997}}^1$

素因数の和:1910017

約数の個数: 24

約数和(自身を含む): 962638992

約数和(自身を除く): 542439652

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1909997, 3819994, 7639988, 9549985, 19099970, 21009967, 38199940, 42019934, 84039868, 105049835, 210099670, 420199340]

約数ペア:

[(1, 420199340), (2, 210099670), (4, 105049835), (5, 84039868), (10, 42019934), (11, 38199940), (20, 21009967), (22, 19099970), (44, 9549985), (55, 7639988), (110, 3819994), (220, 1909997)]