20008975

素因数分解:

$5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2659}}^1$

素因数の和:2719

約数の個数: 24

約数和(自身を含む): 29025920

約数和(自身を除く): 9016945

約数列:

[1, 5, 7, 25, 35, 43, 175, 215, 301, 1075, 1505, 2659, 7525, 13295, 18613, 66475, 93065, 114337, 465325, 571685, 800359, 2858425, 4001795, 20008975]

約数ペア:

[(1, 20008975), (5, 4001795), (7, 2858425), (25, 800359), (35, 571685), (43, 465325), (175, 114337), (215, 93065), (301, 66475), (1075, 18613), (1505, 13295), (2659, 7525)]