81218916

素因数分解:

$2^2\times 3^3\times {\mathrm{43}}^1\times {\mathrm{17489}}^1$

素因数の和:17545

約数の個数: 48

約数和(自身を含む): 215476800

約数和(自身を除く): 134257884

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 43, 54, 86, 108, 129, 172, 258, 387, 516, 774, 1161, 1548, 2322, 4644, 17489, 34978, 52467, 69956, 104934, 157401, 209868, 314802, 472203, 629604, 752027, 944406, 1504054, 1888812, 2256081, 3008108, 4512162, 6768243, 9024324, 13536486, 20304729, 27072972, 40609458, 81218916]

約数ペア:

[(1, 81218916), (2, 40609458), (3, 27072972), (4, 20304729), (6, 13536486), (9, 9024324), (12, 6768243), (18, 4512162), (27, 3008108), (36, 2256081), (43, 1888812), (54, 1504054), (86, 944406), (108, 752027), (129, 629604), (172, 472203), (258, 314802), (387, 209868), (516, 157401), (774, 104934), (1161, 69956), (1548, 52467), (2322, 34978), (4644, 17489)]