3998260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{28559}}^1$

素因数の和:28575

約数の個数: 24

約数和(自身を含む): 9596160

約数和(自身を除く): 5597900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 28559, 57118, 114236, 142795, 199913, 285590, 399826, 571180, 799652, 999565, 1999130, 3998260]

約数ペア:

[(1, 3998260), (2, 1999130), (4, 999565), (5, 799652), (7, 571180), (10, 399826), (14, 285590), (20, 199913), (28, 142795), (35, 114236), (70, 57118), (140, 28559)]