81656478

素因数分解:

$2^1\times 3^3\times {\mathrm{109}}^1\times {\mathrm{13873}}^1$

素因数の和:13993

約数の個数: 32

約数和(自身を含む): 183136800

約数和(自身を除く): 101480322

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 109, 218, 327, 654, 981, 1962, 2943, 5886, 13873, 27746, 41619, 83238, 124857, 249714, 374571, 749142, 1512157, 3024314, 4536471, 9072942, 13609413, 27218826, 40828239, 81656478]

約数ペア:

[(1, 81656478), (2, 40828239), (3, 27218826), (6, 13609413), (9, 9072942), (18, 4536471), (27, 3024314), (54, 1512157), (109, 749142), (218, 374571), (327, 249714), (654, 124857), (981, 83238), (1962, 41619), (2943, 27746), (5886, 13873)]