80341640

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{37897}}^1$

素因数の和:37961

約数の個数: 32

約数和(自身を含む): 184184280

約数和(自身を除く): 103842640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 37897, 75794, 151588, 189485, 303176, 378970, 757940, 1515880, 2008541, 4017082, 8034164, 10042705, 16068328, 20085410, 40170820, 80341640]

約数ペア:

[(1, 80341640), (2, 40170820), (4, 20085410), (5, 16068328), (8, 10042705), (10, 8034164), (20, 4017082), (40, 2008541), (53, 1515880), (106, 757940), (212, 378970), (265, 303176), (424, 189485), (530, 151588), (1060, 75794), (2120, 37897)]