20565805

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{7717}}^1$

素因数の和:7776

約数の個数: 16

約数和(自身を含む): 27229104

約数和(自身を除く): 6663299

約数列:

[1, 5, 13, 41, 65, 205, 533, 2665, 7717, 38585, 100321, 316397, 501605, 1581985, 4113161, 20565805]

約数ペア:

[(1, 20565805), (5, 4113161), (13, 1581985), (41, 501605), (65, 316397), (205, 100321), (533, 38585), (2665, 7717)]