28018885

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{1109}}^1$

素因数の和:1308

約数の個数: 16

約数和(自身を含む): 34951680

約数和(自身を除く): 6932795

約数列:

[1, 5, 31, 155, 163, 815, 1109, 5053, 5545, 25265, 34379, 171895, 180767, 903835, 5603777, 28018885]

約数ペア:

[(1, 28018885), (5, 5603777), (31, 903835), (155, 180767), (163, 171895), (815, 34379), (1109, 25265), (5053, 5545)]