128216272

素因数分解:

$2^4\times {\mathrm{257}}^1\times {\mathrm{31181}}^1$

素因数の和:31446

約数の個数: 20

約数和(自身を含む): 249393636

約数和(自身を除く): 121177364

約数列:

[1, 2, 4, 8, 16, 257, 514, 1028, 2056, 4112, 31181, 62362, 124724, 249448, 498896, 8013517, 16027034, 32054068, 64108136, 128216272]

約数ペア:

[(1, 128216272), (2, 64108136), (4, 32054068), (8, 16027034), (16, 8013517), (257, 498896), (514, 249448), (1028, 124724), (2056, 62362), (4112, 31181)]