642586042

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{523}}^1$

素因数の和:731

約数の個数: 64

約数和(自身を含む): 1207296000

約数和(自身を除く): 564709958

約数列:

[1, 2, 7, 14, 19, 31, 38, 62, 133, 149, 217, 266, 298, 434, 523, 589, 1043, 1046, 1178, 2086, 2831, 3661, 4123, 4619, 5662, 7322, 8246, 9238, 9937, 16213, 19817, 19874, 32333, 32426, 39634, 64666, 69559, 77927, 87761, 113491, 139118, 155854, 175522, 226982, 308047, 545489, 614327, 616094, 1090978, 1228654, 1480613, 2156329, 2415737, 2961226, 4312658, 4831474, 10364291, 16910159, 20728582, 33820318, 45899003, 91798006, 321293021, 642586042]

約数ペア:

[(1, 642586042), (2, 321293021), (7, 91798006), (14, 45899003), (19, 33820318), (31, 20728582), (38, 16910159), (62, 10364291), (133, 4831474), (149, 4312658), (217, 2961226), (266, 2415737), (298, 2156329), (434, 1480613), (523, 1228654), (589, 1090978), (1043, 616094), (1046, 614327), (1178, 545489), (2086, 308047), (2831, 226982), (3661, 175522), (4123, 155854), (4619, 139118), (5662, 113491), (7322, 87761), (8246, 77927), (9238, 69559), (9937, 64666), (16213, 39634), (19817, 32426), (19874, 32333)]