20168680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{72031}}^1$

素因数の和:72049

約数の個数: 32

約数和(自身を含む): 51863040

約数和(自身を除く): 31694360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 72031, 144062, 288124, 360155, 504217, 576248, 720310, 1008434, 1440620, 2016868, 2521085, 2881240, 4033736, 5042170, 10084340, 20168680]

約数ペア:

[(1, 20168680), (2, 10084340), (4, 5042170), (5, 4033736), (7, 2881240), (8, 2521085), (10, 2016868), (14, 1440620), (20, 1008434), (28, 720310), (35, 576248), (40, 504217), (56, 360155), (70, 288124), (140, 144062), (280, 72031)]