81239976

素因数分解:

$2^3\times 3^3\times {\mathrm{457}}^1\times {\mathrm{823}}^1$

素因数の和:1295

約数の個数: 64

約数和(自身を含む): 226435200

約数和(自身を除く): 145195224

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 457, 823, 914, 1371, 1646, 1828, 2469, 2742, 3292, 3656, 4113, 4938, 5484, 6584, 7407, 8226, 9876, 10968, 12339, 14814, 16452, 19752, 22221, 24678, 29628, 32904, 44442, 49356, 59256, 88884, 98712, 177768, 376111, 752222, 1128333, 1504444, 2256666, 3008888, 3384999, 4513332, 6769998, 9026664, 10154997, 13539996, 20309994, 27079992, 40619988, 81239976]

約数ペア:

[(1, 81239976), (2, 40619988), (3, 27079992), (4, 20309994), (6, 13539996), (8, 10154997), (9, 9026664), (12, 6769998), (18, 4513332), (24, 3384999), (27, 3008888), (36, 2256666), (54, 1504444), (72, 1128333), (108, 752222), (216, 376111), (457, 177768), (823, 98712), (914, 88884), (1371, 59256), (1646, 49356), (1828, 44442), (2469, 32904), (2742, 29628), (3292, 24678), (3656, 22221), (4113, 19752), (4938, 16452), (5484, 14814), (6584, 12339), (7407, 10968), (8226, 9876)]