128718772

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{1777}}^1$

素因数の和:2000

約数の個数: 48

約数和(自身を含む): 278790400

約数和(自身を除く): 150071628

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 199, 364, 398, 796, 1393, 1777, 2587, 2786, 3554, 5174, 5572, 7108, 10348, 12439, 18109, 23101, 24878, 36218, 46202, 49756, 72436, 92404, 161707, 323414, 353623, 646828, 707246, 1414492, 2475361, 4597099, 4950722, 9194198, 9901444, 18388396, 32179693, 64359386, 128718772]

約数ペア:

[(1, 128718772), (2, 64359386), (4, 32179693), (7, 18388396), (13, 9901444), (14, 9194198), (26, 4950722), (28, 4597099), (52, 2475361), (91, 1414492), (182, 707246), (199, 646828), (364, 353623), (398, 323414), (796, 161707), (1393, 92404), (1777, 72436), (2587, 49756), (2786, 46202), (3554, 36218), (5174, 24878), (5572, 23101), (7108, 18109), (10348, 12439)]