20268550

素因数分解:

$2^1\times 5^2\times {\mathrm{109}}^1\times {\mathrm{3719}}^1$

素因数の和:3840

約数の個数: 24

約数和(自身を含む): 38055600

約数和(自身を除く): 17787050

約数列:

[1, 2, 5, 10, 25, 50, 109, 218, 545, 1090, 2725, 3719, 5450, 7438, 18595, 37190, 92975, 185950, 405371, 810742, 2026855, 4053710, 10134275, 20268550]

約数ペア:

[(1, 20268550), (2, 10134275), (5, 4053710), (10, 2026855), (25, 810742), (50, 405371), (109, 185950), (218, 92975), (545, 37190), (1090, 18595), (2725, 7438), (3719, 5450)]