640350242

素因数分解:

$2^1\times 7^1\times {\mathrm{1069}}^1\times {\mathrm{42787}}^1$

素因数の和:43865

約数の個数: 16

約数和(自身を含む): 1098795840

約数和(自身を除く): 458445598

約数列:

[1, 2, 7, 14, 1069, 2138, 7483, 14966, 42787, 85574, 299509, 599018, 45739303, 91478606, 320175121, 640350242]

約数ペア:

[(1, 640350242), (2, 320175121), (7, 91478606), (14, 45739303), (1069, 599018), (2138, 299509), (7483, 85574), (14966, 42787)]