68042920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{154643}}^1$

素因数の和:154665

約数の個数: 32

約数和(自身を含む): 167015520

約数和(自身を除く): 98972600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 154643, 309286, 618572, 773215, 1237144, 1546430, 1701073, 3092860, 3402146, 6185720, 6804292, 8505365, 13608584, 17010730, 34021460, 68042920]

約数ペア:

[(1, 68042920), (2, 34021460), (4, 17010730), (5, 13608584), (8, 8505365), (10, 6804292), (11, 6185720), (20, 3402146), (22, 3092860), (40, 1701073), (44, 1546430), (55, 1237144), (88, 773215), (110, 618572), (220, 309286), (440, 154643)]