256427880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{8941}}^1$

素因数の和:9194

約数の個数: 64

約数和(自身を含む): 772588800

約数和(自身を除く): 516160920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 239, 478, 717, 956, 1195, 1434, 1912, 2390, 2868, 3585, 4780, 5736, 7170, 8941, 9560, 14340, 17882, 26823, 28680, 35764, 44705, 53646, 71528, 89410, 107292, 134115, 178820, 214584, 268230, 357640, 536460, 1072920, 2136899, 4273798, 6410697, 8547596, 10684495, 12821394, 17095192, 21368990, 25642788, 32053485, 42737980, 51285576, 64106970, 85475960, 128213940, 256427880]

約数ペア:

[(1, 256427880), (2, 128213940), (3, 85475960), (4, 64106970), (5, 51285576), (6, 42737980), (8, 32053485), (10, 25642788), (12, 21368990), (15, 17095192), (20, 12821394), (24, 10684495), (30, 8547596), (40, 6410697), (60, 4273798), (120, 2136899), (239, 1072920), (478, 536460), (717, 357640), (956, 268230), (1195, 214584), (1434, 178820), (1912, 134115), (2390, 107292), (2868, 89410), (3585, 71528), (4780, 53646), (5736, 44705), (7170, 35764), (8941, 28680), (9560, 26823), (14340, 17882)]