28381885

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{35257}}^1$

素因数の和:35292

約数の個数: 16

約数和(自身を含む): 40617216

約数和(自身を除く): 12235331

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 35257, 176285, 246799, 810911, 1233995, 4054555, 5676377, 28381885]

約数ペア:

[(1, 28381885), (5, 5676377), (7, 4054555), (23, 1233995), (35, 810911), (115, 246799), (161, 176285), (805, 35257)]