9891980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{70657}}^1$

素因数の和:70673

約数の個数: 24

約数和(自身を含む): 23741088

約数和(自身を除く): 13849108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 70657, 141314, 282628, 353285, 494599, 706570, 989198, 1413140, 1978396, 2472995, 4945990, 9891980]

約数ペア:

[(1, 9891980), (2, 4945990), (4, 2472995), (5, 1978396), (7, 1413140), (10, 989198), (14, 706570), (20, 494599), (28, 353285), (35, 282628), (70, 141314), (140, 70657)]