318489951

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{193}}^1$

素因数の和:376

約数の個数: 64

約数和(自身を含む): 516257280

約数和(自身を除く): 197767329

約数列:

[1, 3, 13, 17, 19, 39, 51, 57, 131, 193, 221, 247, 323, 393, 579, 663, 741, 969, 1703, 2227, 2489, 2509, 3281, 3667, 4199, 5109, 6681, 7467, 7527, 9843, 11001, 12597, 25283, 28951, 32357, 42313, 42653, 47671, 62339, 75849, 86853, 97071, 126939, 127959, 143013, 187017, 328679, 429811, 480377, 550069, 810407, 986037, 1289433, 1441131, 1650207, 2431221, 5587543, 6244901, 8166409, 16762629, 18734703, 24499227, 106163317, 318489951]

約数ペア:

[(1, 318489951), (3, 106163317), (13, 24499227), (17, 18734703), (19, 16762629), (39, 8166409), (51, 6244901), (57, 5587543), (131, 2431221), (193, 1650207), (221, 1441131), (247, 1289433), (323, 986037), (393, 810407), (579, 550069), (663, 480377), (741, 429811), (969, 328679), (1703, 187017), (2227, 143013), (2489, 127959), (2509, 126939), (3281, 97071), (3667, 86853), (4199, 75849), (5109, 62339), (6681, 47671), (7467, 42653), (7527, 42313), (9843, 32357), (11001, 28951), (12597, 25283)]