128062960

素因数分解:

$2^4\times 5^1\times {\mathrm{1600787}}^1$

素因数の和:1600800

約数の個数: 20

約数和(自身を含む): 297746568

約数和(自身を除く): 169683608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1600787, 3201574, 6403148, 8003935, 12806296, 16007870, 25612592, 32015740, 64031480, 128062960]

約数ペア:

[(1, 128062960), (2, 64031480), (4, 32015740), (5, 25612592), (8, 16007870), (10, 12806296), (16, 8003935), (20, 6403148), (40, 3201574), (80, 1600787)]