256499560

素因数分解:

$2^3\times 5^1\times {\mathrm{2473}}^1\times {\mathrm{2593}}^1$

素因数の和:5077

約数の個数: 32

約数和(自身を含む): 577580040

約数和(自身を除く): 321080480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2473, 2593, 4946, 5186, 9892, 10372, 12365, 12965, 19784, 20744, 24730, 25930, 49460, 51860, 98920, 103720, 6412489, 12824978, 25649956, 32062445, 51299912, 64124890, 128249780, 256499560]

約数ペア:

[(1, 256499560), (2, 128249780), (4, 64124890), (5, 51299912), (8, 32062445), (10, 25649956), (20, 12824978), (40, 6412489), (2473, 103720), (2593, 98920), (4946, 51860), (5186, 49460), (9892, 25930), (10372, 24730), (12365, 20744), (12965, 19784)]