439340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1997}}^1$

素因数の和:2017

約数の個数: 24

約数和(自身を含む): 1006992

約数和(自身を除く): 567652

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1997, 3994, 7988, 9985, 19970, 21967, 39940, 43934, 87868, 109835, 219670, 439340]

約数ペア:

[(1, 439340), (2, 219670), (4, 109835), (5, 87868), (10, 43934), (11, 39940), (20, 21967), (22, 19970), (44, 9985), (55, 7988), (110, 3994), (220, 1997)]