78397781

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1307}}^1$

素因数の和:1385

約数の個数: 32

約数和(自身を含む): 105477120

約数和(自身を除く): 27079339

約数列:

[1, 7, 11, 19, 41, 77, 133, 209, 287, 451, 779, 1307, 1463, 3157, 5453, 8569, 9149, 14377, 24833, 53587, 59983, 100639, 173831, 273163, 375109, 589457, 1018153, 1912141, 4126199, 7127071, 11199683, 78397781]

約数ペア:

[(1, 78397781), (7, 11199683), (11, 7127071), (19, 4126199), (41, 1912141), (77, 1018153), (133, 589457), (209, 375109), (287, 273163), (451, 173831), (779, 100639), (1307, 59983), (1463, 53587), (3157, 24833), (5453, 14377), (8569, 9149)]