20149870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{11923}}^1$

素因数の和:11956

約数の個数: 24

約数和(自身を含む): 39277656

約数和(自身を除く): 19127786

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 11923, 23846, 59615, 119230, 154999, 309998, 774995, 1549990, 2014987, 4029974, 10074935, 20149870]

約数ペア:

[(1, 20149870), (2, 10074935), (5, 4029974), (10, 2014987), (13, 1549990), (26, 774995), (65, 309998), (130, 154999), (169, 119230), (338, 59615), (845, 23846), (1690, 11923)]