28720856

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{188953}}^1$

素因数の和:188978

約数の個数: 16

約数和(自身を含む): 56686200

約数和(自身を除く): 27965344

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 188953, 377906, 755812, 1511624, 3590107, 7180214, 14360428, 28720856]

約数ペア:

[(1, 28720856), (2, 14360428), (4, 7180214), (8, 3590107), (19, 1511624), (38, 755812), (76, 377906), (152, 188953)]