28438690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{406267}}^1$

素因数の和:406281

約数の個数: 16

約数和(自身を含む): 58502592

約数和(自身を除く): 30063902

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 406267, 812534, 2031335, 2843869, 4062670, 5687738, 14219345, 28438690]

約数ペア:

[(1, 28438690), (2, 14219345), (5, 5687738), (7, 4062670), (10, 2843869), (14, 2031335), (35, 812534), (70, 406267)]