123519978

素因数分解:

$2^1\times 3^4\times {\mathrm{71}}^1\times {\mathrm{10739}}^1$

素因数の和:10824

約数の個数: 40

約数和(自身を含む): 280700640

約数和(自身を除く): 157180662

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 81, 142, 162, 213, 426, 639, 1278, 1917, 3834, 5751, 10739, 11502, 21478, 32217, 64434, 96651, 193302, 289953, 579906, 762469, 869859, 1524938, 1739718, 2287407, 4574814, 6862221, 13724442, 20586663, 41173326, 61759989, 123519978]

約数ペア:

[(1, 123519978), (2, 61759989), (3, 41173326), (6, 20586663), (9, 13724442), (18, 6862221), (27, 4574814), (54, 2287407), (71, 1739718), (81, 1524938), (142, 869859), (162, 762469), (213, 579906), (426, 289953), (639, 193302), (1278, 96651), (1917, 64434), (3834, 32217), (5751, 21478), (10739, 11502)]