31987820

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{8287}}^1$

素因数の和:8489

約数の個数: 24

約数和(自身を含む): 67530624

約数和(自身を除く): 35542804

約数列:

[1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1930, 3860, 8287, 16574, 33148, 41435, 82870, 165740, 1599391, 3198782, 6397564, 7996955, 15993910, 31987820]

約数ペア:

[(1, 31987820), (2, 15993910), (4, 7996955), (5, 6397564), (10, 3198782), (20, 1599391), (193, 165740), (386, 82870), (772, 41435), (965, 33148), (1930, 16574), (3860, 8287)]