340720

素因数分解:

$2^4\times 5^1\times {\mathrm{4259}}^1$

素因数の和:4272

約数の個数: 20

約数和(自身を含む): 792360

約数和(自身を除く): 451640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4259, 8518, 17036, 21295, 34072, 42590, 68144, 85180, 170360, 340720]

約数ペア:

[(1, 340720), (2, 170360), (4, 85180), (5, 68144), (8, 42590), (10, 34072), (16, 21295), (20, 17036), (40, 8518), (80, 4259)]