20751265

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1\times {\mathrm{503}}^1$

素因数の和:768

約数の個数: 16

約数和(自身を含む): 25740288

約数和(自身を除く): 4989023

約数列:

[1, 5, 37, 185, 223, 503, 1115, 2515, 8251, 18611, 41255, 93055, 112169, 560845, 4150253, 20751265]

約数ペア:

[(1, 20751265), (5, 4150253), (37, 560845), (185, 112169), (223, 93055), (503, 41255), (1115, 18611), (2515, 8251)]