131302760

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{25847}}^1$

素因数の和:25985

約数の個数: 32

約数和(自身を含む): 297768960

約数和(自身を除く): 166466200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 25847, 51694, 103388, 129235, 206776, 258470, 516940, 1033880, 3282569, 6565138, 13130276, 16412845, 26260552, 32825690, 65651380, 131302760]

約数ペア:

[(1, 131302760), (2, 65651380), (4, 32825690), (5, 26260552), (8, 16412845), (10, 13130276), (20, 6565138), (40, 3282569), (127, 1033880), (254, 516940), (508, 258470), (635, 206776), (1016, 129235), (1270, 103388), (2540, 51694), (5080, 25847)]