55140820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{393863}}^1$

素因数の和:393879

約数の個数: 24

約数和(自身を含む): 132338304

約数和(自身を除く): 77197484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 393863, 787726, 1575452, 1969315, 2757041, 3938630, 5514082, 7877260, 11028164, 13785205, 27570410, 55140820]

約数ペア:

[(1, 55140820), (2, 27570410), (4, 13785205), (5, 11028164), (7, 7877260), (10, 5514082), (14, 3938630), (20, 2757041), (28, 1969315), (35, 1575452), (70, 787726), (140, 393863)]