20518030

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157831}}^1$

素因数の和:157851

約数の個数: 16

約数和(自身を含む): 39773664

約数和(自身を除く): 19255634

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157831, 315662, 789155, 1578310, 2051803, 4103606, 10259015, 20518030]

約数ペア:

[(1, 20518030), (2, 10259015), (5, 4103606), (10, 2051803), (13, 1578310), (26, 789155), (65, 315662), (130, 157831)]