51707825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{409}}^1$

素因数の和:821

約数の個数: 24

約数和(自身を含む): 69396600

約数和(自身を除く): 17688775

約数列:

[1, 5, 13, 25, 65, 325, 389, 409, 1945, 2045, 5057, 5317, 9725, 10225, 25285, 26585, 126425, 132925, 159101, 795505, 2068313, 3977525, 10341565, 51707825]

約数ペア:

[(1, 51707825), (5, 10341565), (13, 3977525), (25, 2068313), (65, 795505), (325, 159101), (389, 132925), (409, 126425), (1945, 26585), (2045, 25285), (5057, 10225), (5317, 9725)]