205179918

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{487}}^1$

素因数の和:629

約数の個数: 64

約数和(自身を含む): 445243392

約数和(自身を除く): 240063474

約数列:

[1, 2, 3, 6, 23, 43, 46, 69, 71, 86, 129, 138, 142, 213, 258, 426, 487, 974, 989, 1461, 1633, 1978, 2922, 2967, 3053, 3266, 4899, 5934, 6106, 9159, 9798, 11201, 18318, 20941, 22402, 33603, 34577, 41882, 62823, 67206, 69154, 70219, 103731, 125646, 140438, 207462, 210657, 421314, 481643, 795271, 963286, 1444929, 1486811, 1590542, 2385813, 2889858, 2973622, 4460433, 4771626, 8920866, 34196653, 68393306, 102589959, 205179918]

約数ペア:

[(1, 205179918), (2, 102589959), (3, 68393306), (6, 34196653), (23, 8920866), (43, 4771626), (46, 4460433), (69, 2973622), (71, 2889858), (86, 2385813), (129, 1590542), (138, 1486811), (142, 1444929), (213, 963286), (258, 795271), (426, 481643), (487, 421314), (974, 210657), (989, 207462), (1461, 140438), (1633, 125646), (1978, 103731), (2922, 70219), (2967, 69154), (3053, 67206), (3266, 62823), (4899, 41882), (5934, 34577), (6106, 33603), (9159, 22402), (9798, 20941), (11201, 18318)]