2131295

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{431}}^1$

素因数の和:502

約数の個数: 16

約数和(自身を含む): 2737152

約数和(自身を除く): 605857

約数列:

[1, 5, 23, 43, 115, 215, 431, 989, 2155, 4945, 9913, 18533, 49565, 92665, 426259, 2131295]

約数ペア:

[(1, 2131295), (5, 426259), (23, 92665), (43, 49565), (115, 18533), (215, 9913), (431, 4945), (989, 2155)]