820512511

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{439}}^1$

素因数の和:548

約数の個数: 64

約数和(自身を含む): 1135411200

約数和(自身を除く): 314898689

約数列:

[1, 7, 13, 19, 23, 47, 91, 133, 161, 247, 299, 329, 437, 439, 611, 893, 1081, 1729, 2093, 3059, 3073, 4277, 5681, 5707, 6251, 7567, 8341, 10097, 11609, 14053, 20539, 20633, 39767, 39949, 58387, 70679, 81263, 98371, 108433, 131261, 143773, 144431, 191843, 267007, 268229, 392027, 474559, 759031, 918827, 1342901, 1869049, 1877603, 2493959, 2744189, 3321913, 5096351, 6169267, 9016621, 17457713, 35674457, 43184869, 63116347, 117216073, 820512511]

約数ペア:

[(1, 820512511), (7, 117216073), (13, 63116347), (19, 43184869), (23, 35674457), (47, 17457713), (91, 9016621), (133, 6169267), (161, 5096351), (247, 3321913), (299, 2744189), (329, 2493959), (437, 1877603), (439, 1869049), (611, 1342901), (893, 918827), (1081, 759031), (1729, 474559), (2093, 392027), (3059, 268229), (3073, 267007), (4277, 191843), (5681, 144431), (5707, 143773), (6251, 131261), (7567, 108433), (8341, 98371), (10097, 81263), (11609, 70679), (14053, 58387), (20539, 39949), (20633, 39767)]