197403905

素因数分解:

$5^1\times {\mathrm{109}}^1\times {\mathrm{281}}^1\times {\mathrm{1289}}^1$

素因数の和:1684

約数の個数: 16

約数和(自身を含む): 240094800

約数和(自身を除く): 42690895

約数列:

[1, 5, 109, 281, 545, 1289, 1405, 6445, 30629, 140501, 153145, 362209, 702505, 1811045, 39480781, 197403905]

約数ペア:

[(1, 197403905), (5, 39480781), (109, 1811045), (281, 702505), (545, 362209), (1289, 153145), (1405, 140501), (6445, 30629)]