1284261775

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{20639}}^1$

素因数の和:20799

約数の個数: 24

約数和(自身を含む): 1689177600

約数和(自身を除く): 404915825

約数列:

[1, 5, 19, 25, 95, 131, 475, 655, 2489, 3275, 12445, 20639, 62225, 103195, 392141, 515975, 1960705, 2703709, 9803525, 13518545, 51370471, 67592725, 256852355, 1284261775]

約数ペア:

[(1, 1284261775), (5, 256852355), (19, 67592725), (25, 51370471), (95, 13518545), (131, 9803525), (475, 2703709), (655, 1960705), (2489, 515975), (3275, 392141), (12445, 103195), (20639, 62225)]