20115025

素因数分解:

$5^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{839}}^1$

素因数の和:993

約数の個数: 24

約数和(自身を含む): 28748160

約数和(自身を除く): 8633135

約数列:

[1, 5, 7, 25, 35, 137, 175, 685, 839, 959, 3425, 4195, 4795, 5873, 20975, 23975, 29365, 114943, 146825, 574715, 804601, 2873575, 4023005, 20115025]

約数ペア:

[(1, 20115025), (5, 4023005), (7, 2873575), (25, 804601), (35, 574715), (137, 146825), (175, 114943), (685, 29365), (839, 23975), (959, 20975), (3425, 5873), (4195, 4795)]