20859580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{148997}}^1$

素因数の和:149013

約数の個数: 24

約数和(自身を含む): 50063328

約数和(自身を除く): 29203748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 148997, 297994, 595988, 744985, 1042979, 1489970, 2085958, 2979940, 4171916, 5214895, 10429790, 20859580]

約数ペア:

[(1, 20859580), (2, 10429790), (4, 5214895), (5, 4171916), (7, 2979940), (10, 2085958), (14, 1489970), (20, 1042979), (28, 744985), (35, 595988), (70, 297994), (140, 148997)]