211869680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{3391}}^1$

素因数の和:3486

約数の個数: 80

約数和(自身を含む): 545107968

約数和(自身を除く): 333238288

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 71, 80, 88, 110, 142, 176, 220, 284, 355, 440, 568, 710, 781, 880, 1136, 1420, 1562, 2840, 3124, 3391, 3905, 5680, 6248, 6782, 7810, 12496, 13564, 15620, 16955, 27128, 31240, 33910, 37301, 54256, 62480, 67820, 74602, 135640, 149204, 186505, 240761, 271280, 298408, 373010, 481522, 596816, 746020, 963044, 1203805, 1492040, 1926088, 2407610, 2648371, 2984080, 3852176, 4815220, 5296742, 9630440, 10593484, 13241855, 19260880, 21186968, 26483710, 42373936, 52967420, 105934840, 211869680]

約数ペア:

[(1, 211869680), (2, 105934840), (4, 52967420), (5, 42373936), (8, 26483710), (10, 21186968), (11, 19260880), (16, 13241855), (20, 10593484), (22, 9630440), (40, 5296742), (44, 4815220), (55, 3852176), (71, 2984080), (80, 2648371), (88, 2407610), (110, 1926088), (142, 1492040), (176, 1203805), (220, 963044), (284, 746020), (355, 596816), (440, 481522), (568, 373010), (710, 298408), (781, 271280), (880, 240761), (1136, 186505), (1420, 149204), (1562, 135640), (2840, 74602), (3124, 67820), (3391, 62480), (3905, 54256), (5680, 37301), (6248, 33910), (6782, 31240), (7810, 27128), (12496, 16955), (13564, 15620)]