8000020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{57143}}^1$

素因数の和:57159

約数の個数: 24

約数和(自身を含む): 19200384

約数和(自身を除く): 11200364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 57143, 114286, 228572, 285715, 400001, 571430, 800002, 1142860, 1600004, 2000005, 4000010, 8000020]

約数ペア:

[(1, 8000020), (2, 4000010), (4, 2000005), (5, 1600004), (7, 1142860), (10, 800002), (14, 571430), (20, 400001), (28, 285715), (35, 228572), (70, 114286), (140, 57143)]