2820155

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1009}}^1$

素因数の和:1070

約数の個数: 16

約数和(自身を含む): 3732960

約数和(自身を除く): 912805

約数列:

[1, 5, 13, 43, 65, 215, 559, 1009, 2795, 5045, 13117, 43387, 65585, 216935, 564031, 2820155]

約数ペア:

[(1, 2820155), (5, 564031), (13, 216935), (43, 65585), (65, 43387), (215, 13117), (559, 5045), (1009, 2795)]