278319978

素因数分解:

$2^1\times 3^2\times {\mathrm{139}}^1\times {\mathrm{173}}^1\times {\mathrm{643}}^1$

素因数の和:963

約数の個数: 48

約数和(自身を含む): 611825760

約数和(自身を除く): 333505782

約数列:

[1, 2, 3, 6, 9, 18, 139, 173, 278, 346, 417, 519, 643, 834, 1038, 1251, 1286, 1557, 1929, 2502, 3114, 3858, 5787, 11574, 24047, 48094, 72141, 89377, 111239, 144282, 178754, 216423, 222478, 268131, 333717, 432846, 536262, 667434, 804393, 1001151, 1608786, 2002302, 15462221, 30924442, 46386663, 92773326, 139159989, 278319978]

約数ペア:

[(1, 278319978), (2, 139159989), (3, 92773326), (6, 46386663), (9, 30924442), (18, 15462221), (139, 2002302), (173, 1608786), (278, 1001151), (346, 804393), (417, 667434), (519, 536262), (643, 432846), (834, 333717), (1038, 268131), (1251, 222478), (1286, 216423), (1557, 178754), (1929, 144282), (2502, 111239), (3114, 89377), (3858, 72141), (5787, 48094), (11574, 24047)]