81720408

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{44221}}^1$

素因数の和:44248

約数の個数: 64

約数和(自身を含む): 254718720

約数和(自身を除く): 172998312

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 24, 28, 33, 42, 44, 56, 66, 77, 84, 88, 132, 154, 168, 231, 264, 308, 462, 616, 924, 1848, 44221, 88442, 132663, 176884, 265326, 309547, 353768, 486431, 530652, 619094, 928641, 972862, 1061304, 1238188, 1459293, 1857282, 1945724, 2476376, 2918586, 3405017, 3714564, 3891448, 5837172, 6810034, 7429128, 10215051, 11674344, 13620068, 20430102, 27240136, 40860204, 81720408]

約数ペア:

[(1, 81720408), (2, 40860204), (3, 27240136), (4, 20430102), (6, 13620068), (7, 11674344), (8, 10215051), (11, 7429128), (12, 6810034), (14, 5837172), (21, 3891448), (22, 3714564), (24, 3405017), (28, 2918586), (33, 2476376), (42, 1945724), (44, 1857282), (56, 1459293), (66, 1238188), (77, 1061304), (84, 972862), (88, 928641), (132, 619094), (154, 530652), (168, 486431), (231, 353768), (264, 309547), (308, 265326), (462, 176884), (616, 132663), (924, 88442), (1848, 44221)]