28686555

素因数分解:

$3^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{367}}^1$

素因数の和:577

約数の個数: 40

約数和(自身を含む): 51830592

約数和(自身を除く): 23144037

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 193, 367, 405, 579, 965, 1101, 1737, 1835, 2895, 3303, 5211, 5505, 8685, 9909, 15633, 16515, 26055, 29727, 49545, 70831, 78165, 148635, 212493, 354155, 637479, 1062465, 1912437, 3187395, 5737311, 9562185, 28686555]

約数ペア:

[(1, 28686555), (3, 9562185), (5, 5737311), (9, 3187395), (15, 1912437), (27, 1062465), (45, 637479), (81, 354155), (135, 212493), (193, 148635), (367, 78165), (405, 70831), (579, 49545), (965, 29727), (1101, 26055), (1737, 16515), (1835, 15633), (2895, 9909), (3303, 8685), (5211, 5505)]