1321800920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{56681}}^1$

素因数の和:56756

約数の個数: 64

約数和(自身を含む): 3305694240

約数和(自身を除く): 1983893320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 53, 55, 88, 106, 110, 212, 220, 265, 424, 440, 530, 583, 1060, 1166, 2120, 2332, 2915, 4664, 5830, 11660, 23320, 56681, 113362, 226724, 283405, 453448, 566810, 623491, 1133620, 1246982, 2267240, 2493964, 3004093, 3117455, 4987928, 6008186, 6234910, 12016372, 12469820, 15020465, 24032744, 24939640, 30040930, 33045023, 60081860, 66090046, 120163720, 132180092, 165225115, 264360184, 330450230, 660900460, 1321800920]

約数ペア:

[(1, 1321800920), (2, 660900460), (4, 330450230), (5, 264360184), (8, 165225115), (10, 132180092), (11, 120163720), (20, 66090046), (22, 60081860), (40, 33045023), (44, 30040930), (53, 24939640), (55, 24032744), (88, 15020465), (106, 12469820), (110, 12016372), (212, 6234910), (220, 6008186), (265, 4987928), (424, 3117455), (440, 3004093), (530, 2493964), (583, 2267240), (1060, 1246982), (1166, 1133620), (2120, 623491), (2332, 566810), (2915, 453448), (4664, 283405), (5830, 226724), (11660, 113362), (23320, 56681)]