81865665

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{293}}^1\times {\mathrm{887}}^1$

素因数の和:1198

約数の個数: 48

約数和(自身を含む): 162908928

約数和(自身を除く): 81043263

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 293, 315, 879, 887, 1465, 2051, 2637, 2661, 4395, 4435, 6153, 6209, 7983, 10255, 13185, 13305, 18459, 18627, 30765, 31045, 39915, 55881, 92295, 93135, 259891, 279405, 779673, 1299455, 1819237, 2339019, 3898365, 5457711, 9096185, 11695095, 16373133, 27288555, 81865665]

約数ペア:

[(1, 81865665), (3, 27288555), (5, 16373133), (7, 11695095), (9, 9096185), (15, 5457711), (21, 3898365), (35, 2339019), (45, 1819237), (63, 1299455), (105, 779673), (293, 279405), (315, 259891), (879, 93135), (887, 92295), (1465, 55881), (2051, 39915), (2637, 31045), (2661, 30765), (4395, 18627), (4435, 18459), (6153, 13305), (6209, 13185), (7983, 10255)]