204400805

素因数分解:

$5^1\times 7^2\times {\mathrm{281}}^1\times {\mathrm{2969}}^1$

素因数の和:3269

約数の個数: 24

約数和(自身を含む): 286438680

約数和(自身を除く): 82037875

約数列:

[1, 5, 7, 35, 49, 245, 281, 1405, 1967, 2969, 9835, 13769, 14845, 20783, 68845, 103915, 145481, 727405, 834289, 4171445, 5840023, 29200115, 40880161, 204400805]

約数ペア:

[(1, 204400805), (5, 40880161), (7, 29200115), (35, 5840023), (49, 4171445), (245, 834289), (281, 727405), (1405, 145481), (1967, 103915), (2969, 68845), (9835, 20783), (13769, 14845)]