20012545

素因数分解:

$5^1\times 7^1\times {\mathrm{83}}^3$

素因数の和:261

約数の個数: 16

約数和(自身を含む): 27780480

約数和(自身を除く): 7767935

約数列:

[1, 5, 7, 35, 83, 415, 581, 2905, 6889, 34445, 48223, 241115, 571787, 2858935, 4002509, 20012545]

約数ペア:

[(1, 20012545), (5, 4002509), (7, 2858935), (35, 571787), (83, 241115), (415, 48223), (581, 34445), (2905, 6889)]