81816105

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{277}}^1$

素因数の和:418

約数の個数: 64

約数和(自身を含む): 156925440

約数和(自身を除く): 75109335

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 87, 97, 105, 145, 203, 277, 291, 435, 485, 609, 679, 831, 1015, 1385, 1455, 1939, 2037, 2813, 3045, 3395, 4155, 5817, 8033, 8439, 9695, 10185, 14065, 19691, 24099, 26869, 29085, 40165, 42195, 56231, 59073, 80607, 98455, 120495, 134345, 168693, 188083, 281155, 295365, 403035, 564249, 779201, 843465, 940415, 2337603, 2821245, 3896005, 5454407, 11688015, 16363221, 27272035, 81816105]

約数ペア:

[(1, 81816105), (3, 27272035), (5, 16363221), (7, 11688015), (15, 5454407), (21, 3896005), (29, 2821245), (35, 2337603), (87, 940415), (97, 843465), (105, 779201), (145, 564249), (203, 403035), (277, 295365), (291, 281155), (435, 188083), (485, 168693), (609, 134345), (679, 120495), (831, 98455), (1015, 80607), (1385, 59073), (1455, 56231), (1939, 42195), (2037, 40165), (2813, 29085), (3045, 26869), (3395, 24099), (4155, 19691), (5817, 14065), (8033, 10185), (8439, 9695)]