128477584

素因数分解:

$2^4\times {\mathrm{199}}^1\times {\mathrm{40351}}^1$

素因数の和:40558

約数の個数: 20

約数和(自身を含む): 250182400

約数和(自身を除く): 121704816

約数列:

[1, 2, 4, 8, 16, 199, 398, 796, 1592, 3184, 40351, 80702, 161404, 322808, 645616, 8029849, 16059698, 32119396, 64238792, 128477584]

約数ペア:

[(1, 128477584), (2, 64238792), (4, 32119396), (8, 16059698), (16, 8029849), (199, 645616), (398, 322808), (796, 161404), (1592, 80702), (3184, 40351)]