20019700

素因数分解:

$2^2\times 5^2\times {\mathrm{107}}^1\times {\mathrm{1871}}^1$

素因数の和:1992

約数の個数: 36

約数和(自身を含む): 43872192

約数和(自身を除く): 23852492

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 107, 214, 428, 535, 1070, 1871, 2140, 2675, 3742, 5350, 7484, 9355, 10700, 18710, 37420, 46775, 93550, 187100, 200197, 400394, 800788, 1000985, 2001970, 4003940, 5004925, 10009850, 20019700]

約数ペア:

[(1, 20019700), (2, 10009850), (4, 5004925), (5, 4003940), (10, 2001970), (20, 1000985), (25, 800788), (50, 400394), (100, 200197), (107, 187100), (214, 93550), (428, 46775), (535, 37420), (1070, 18710), (1871, 10700), (2140, 9355), (2675, 7484), (3742, 5350)]