128520154

素因数分解:

$2^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{23599}}^1$

素因数の和:23997

約数の個数: 16

約数和(自身を含む): 220896000

約数和(自身を除く): 92375846

約数列:

[1, 2, 7, 14, 389, 778, 2723, 5446, 23599, 47198, 165193, 330386, 9180011, 18360022, 64260077, 128520154]

約数ペア:

[(1, 128520154), (2, 64260077), (7, 18360022), (14, 9180011), (389, 330386), (778, 165193), (2723, 47198), (5446, 23599)]