131405168

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{75347}}^1$

素因数の和:75464

約数の個数: 20

約数和(自身を含む): 256936680

約数和(自身を除く): 125531512

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 75347, 150694, 301388, 602776, 1205552, 8212823, 16425646, 32851292, 65702584, 131405168]

約数ペア:

[(1, 131405168), (2, 65702584), (4, 32851292), (8, 16425646), (16, 8212823), (109, 1205552), (218, 602776), (436, 301388), (872, 150694), (1744, 75347)]