28265748

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{907}}^1$

素因数の和:981

約数の個数: 72

約数和(自身を含む): 78255072

約数和(自身を除く): 49989324

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 53, 84, 98, 106, 147, 159, 196, 212, 294, 318, 371, 588, 636, 742, 907, 1113, 1484, 1814, 2226, 2597, 2721, 3628, 4452, 5194, 5442, 6349, 7791, 10388, 10884, 12698, 15582, 19047, 25396, 31164, 38094, 44443, 48071, 76188, 88886, 96142, 133329, 144213, 177772, 192284, 266658, 288426, 336497, 533316, 576852, 672994, 1009491, 1345988, 2018982, 2355479, 4037964, 4710958, 7066437, 9421916, 14132874, 28265748]

約数ペア:

[(1, 28265748), (2, 14132874), (3, 9421916), (4, 7066437), (6, 4710958), (7, 4037964), (12, 2355479), (14, 2018982), (21, 1345988), (28, 1009491), (42, 672994), (49, 576852), (53, 533316), (84, 336497), (98, 288426), (106, 266658), (147, 192284), (159, 177772), (196, 144213), (212, 133329), (294, 96142), (318, 88886), (371, 76188), (588, 48071), (636, 44443), (742, 38094), (907, 31164), (1113, 25396), (1484, 19047), (1814, 15582), (2226, 12698), (2597, 10884), (2721, 10388), (3628, 7791), (4452, 6349), (5194, 5442)]