20039740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{143141}}^1$

素因数の和:143157

約数の個数: 24

約数和(自身を含む): 48095712

約数和(自身を除く): 28055972

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 143141, 286282, 572564, 715705, 1001987, 1431410, 2003974, 2862820, 4007948, 5009935, 10019870, 20039740]

約数ペア:

[(1, 20039740), (2, 10019870), (4, 5009935), (5, 4007948), (7, 2862820), (10, 2003974), (14, 1431410), (20, 1001987), (28, 715705), (35, 572564), (70, 286282), (140, 143141)]