516390721

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{863}}^1$

素因数の和:1309

約数の個数: 32

約数和(自身を含む): 680140800

約数和(自身を除く): 163750079

約数列:

[1, 7, 11, 19, 77, 133, 209, 409, 863, 1463, 2863, 4499, 6041, 7771, 9493, 16397, 31493, 54397, 66451, 85481, 114779, 180367, 352967, 598367, 1262569, 2470769, 3882637, 6706373, 27178459, 46944611, 73770103, 516390721]

約数ペア:

[(1, 516390721), (7, 73770103), (11, 46944611), (19, 27178459), (77, 6706373), (133, 3882637), (209, 2470769), (409, 1262569), (863, 598367), (1463, 352967), (2863, 180367), (4499, 114779), (6041, 85481), (7771, 66451), (9493, 54397), (16397, 31493)]