128728895

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43711}}^1$

素因数の和:43766

約数の個数: 16

約数和(自身を含む): 167854080

約数和(自身を除く): 39125185

約数列:

[1, 5, 19, 31, 95, 155, 589, 2945, 43711, 218555, 830509, 1355041, 4152545, 6775205, 25745779, 128728895]

約数ペア:

[(1, 128728895), (5, 25745779), (19, 6775205), (31, 4152545), (95, 1355041), (155, 830509), (589, 218555), (2945, 43711)]