213420088

素因数分解:

$2^3\times 7^4\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:346

約数の個数: 80

約数和(自身を含む): 479979360

約数和(自身を除く): 266559272

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 49, 56, 82, 98, 164, 196, 271, 287, 328, 343, 392, 542, 574, 686, 1084, 1148, 1372, 1897, 2009, 2168, 2296, 2401, 2744, 3794, 4018, 4802, 7588, 8036, 9604, 11111, 13279, 14063, 15176, 16072, 19208, 22222, 26558, 28126, 44444, 53116, 56252, 77777, 88888, 92953, 98441, 106232, 112504, 155554, 185906, 196882, 311108, 371812, 393764, 544439, 622216, 650671, 743624, 787528, 1088878, 1301342, 2177756, 2602684, 3811073, 4355512, 5205368, 7622146, 15244292, 26677511, 30488584, 53355022, 106710044, 213420088]

約数ペア:

[(1, 213420088), (2, 106710044), (4, 53355022), (7, 30488584), (8, 26677511), (14, 15244292), (28, 7622146), (41, 5205368), (49, 4355512), (56, 3811073), (82, 2602684), (98, 2177756), (164, 1301342), (196, 1088878), (271, 787528), (287, 743624), (328, 650671), (343, 622216), (392, 544439), (542, 393764), (574, 371812), (686, 311108), (1084, 196882), (1148, 185906), (1372, 155554), (1897, 112504), (2009, 106232), (2168, 98441), (2296, 92953), (2401, 88888), (2744, 77777), (3794, 56252), (4018, 53116), (4802, 44444), (7588, 28126), (8036, 26558), (9604, 22222), (11111, 19208), (13279, 16072), (14063, 15176)]