128529080

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{25301}}^1$

素因数の和:25439

約数の個数: 32

約数和(自身を含む): 291479040

約数和(自身を除く): 162949960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 25301, 50602, 101204, 126505, 202408, 253010, 506020, 1012040, 3213227, 6426454, 12852908, 16066135, 25705816, 32132270, 64264540, 128529080]

約数ペア:

[(1, 128529080), (2, 64264540), (4, 32132270), (5, 25705816), (8, 16066135), (10, 12852908), (20, 6426454), (40, 3213227), (127, 1012040), (254, 506020), (508, 253010), (635, 202408), (1016, 126505), (1270, 101204), (2540, 50602), (5080, 25301)]