261140030

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{330557}}^1$

素因数の和:330643

約数の個数: 16

約数和(自身を含む): 476003520

約数和(自身を除く): 214863490

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 330557, 661114, 1652785, 3305570, 26114003, 52228006, 130570015, 261140030]

約数ペア:

[(1, 261140030), (2, 130570015), (5, 52228006), (10, 26114003), (79, 3305570), (158, 1652785), (395, 661114), (790, 330557)]