20881853856

素因数分解:

$2^5\times 3^2\times {\mathrm{79}}^1\times {\mathrm{917803}}^1$

素因数の和:917898

約数の個数: 72

約数和(自身を含む): 60134518080

約数和(自身を除く): 39252664224

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 79, 96, 144, 158, 237, 288, 316, 474, 632, 711, 948, 1264, 1422, 1896, 2528, 2844, 3792, 5688, 7584, 11376, 22752, 917803, 1835606, 2753409, 3671212, 5506818, 7342424, 8260227, 11013636, 14684848, 16520454, 22027272, 29369696, 33040908, 44054544, 66081816, 72506437, 88109088, 132163632, 145012874, 217519311, 264327264, 290025748, 435038622, 580051496, 652557933, 870077244, 1160102992, 1305115866, 1740154488, 2320205984, 2610231732, 3480308976, 5220463464, 6960617952, 10440926928, 20881853856]

約数ペア:

[(1, 20881853856), (2, 10440926928), (3, 6960617952), (4, 5220463464), (6, 3480308976), (8, 2610231732), (9, 2320205984), (12, 1740154488), (16, 1305115866), (18, 1160102992), (24, 870077244), (32, 652557933), (36, 580051496), (48, 435038622), (72, 290025748), (79, 264327264), (96, 217519311), (144, 145012874), (158, 132163632), (237, 88109088), (288, 72506437), (316, 66081816), (474, 44054544), (632, 33040908), (711, 29369696), (948, 22027272), (1264, 16520454), (1422, 14684848), (1896, 11013636), (2528, 8260227), (2844, 7342424), (3792, 5506818), (5688, 3671212), (7584, 2753409), (11376, 1835606), (22752, 917803)]