20765045

素因数分解:

$5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{5443}}^1$

素因数の和:5564

約数の個数: 16

約数和(自身を含む): 28744320

約数和(自身を除く): 7979275

約数列:

[1, 5, 7, 35, 109, 545, 763, 3815, 5443, 27215, 38101, 190505, 593287, 2966435, 4153009, 20765045]

約数ペア:

[(1, 20765045), (5, 4153009), (7, 2966435), (35, 593287), (109, 190505), (545, 38101), (763, 27215), (3815, 5443)]