20507900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{29297}}^1$

素因数の和:29318

約数の個数: 36

約数和(自身を含む): 50861328

約数和(自身を除く): 30353428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 29297, 58594, 117188, 146485, 205079, 292970, 410158, 585940, 732425, 820316, 1025395, 1464850, 2050790, 2929700, 4101580, 5126975, 10253950, 20507900]

約数ペア:

[(1, 20507900), (2, 10253950), (4, 5126975), (5, 4101580), (7, 2929700), (10, 2050790), (14, 1464850), (20, 1025395), (25, 820316), (28, 732425), (35, 585940), (50, 410158), (70, 292970), (100, 205079), (140, 146485), (175, 117188), (350, 58594), (700, 29297)]