280741560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{212683}}^1$

素因数の和:212708

約数の個数: 64

約数和(自身を含む): 918794880

約数和(自身を除く): 638053320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 212683, 425366, 638049, 850732, 1063415, 1276098, 1701464, 2126830, 2339513, 2552196, 3190245, 4253660, 4679026, 5104392, 6380490, 7018539, 8507320, 9358052, 11697565, 12760980, 14037078, 18716104, 23395130, 25521960, 28074156, 35092695, 46790260, 56148312, 70185390, 93580520, 140370780, 280741560]

約数ペア:

[(1, 280741560), (2, 140370780), (3, 93580520), (4, 70185390), (5, 56148312), (6, 46790260), (8, 35092695), (10, 28074156), (11, 25521960), (12, 23395130), (15, 18716104), (20, 14037078), (22, 12760980), (24, 11697565), (30, 9358052), (33, 8507320), (40, 7018539), (44, 6380490), (55, 5104392), (60, 4679026), (66, 4253660), (88, 3190245), (110, 2552196), (120, 2339513), (132, 2126830), (165, 1701464), (220, 1276098), (264, 1063415), (330, 850732), (440, 638049), (660, 425366), (1320, 212683)]