15840020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{113143}}^1$

素因数の和:113159

約数の個数: 24

約数和(自身を含む): 38016384

約数和(自身を除く): 22176364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 113143, 226286, 452572, 565715, 792001, 1131430, 1584002, 2262860, 3168004, 3960005, 7920010, 15840020]

約数ペア:

[(1, 15840020), (2, 7920010), (4, 3960005), (5, 3168004), (7, 2262860), (10, 1584002), (14, 1131430), (20, 792001), (28, 565715), (35, 452572), (70, 226286), (140, 113143)]