133721780

素因数分解:

$2^2\times 5^1\times {\mathrm{1291}}^1\times {\mathrm{5179}}^1$

素因数の和:6479

約数の個数: 24

約数和(自身を含む): 281087520

約数和(自身を除く): 147365740

約数列:

[1, 2, 4, 5, 10, 20, 1291, 2582, 5164, 5179, 6455, 10358, 12910, 20716, 25820, 25895, 51790, 103580, 6686089, 13372178, 26744356, 33430445, 66860890, 133721780]

約数ペア:

[(1, 133721780), (2, 66860890), (4, 33430445), (5, 26744356), (10, 13372178), (20, 6686089), (1291, 103580), (2582, 51790), (5164, 25895), (5179, 25820), (6455, 20716), (10358, 12910)]