261061775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47251}}^1$

素因数の和:47291

約数の個数: 24

約数和(自身を含む): 369132624

約数和(自身を除く): 108070849

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 1105, 5525, 47251, 236255, 614263, 803267, 1181275, 3071315, 4016335, 10442471, 15356575, 20081675, 52212355, 261061775]

約数ペア:

[(1, 261061775), (5, 52212355), (13, 20081675), (17, 15356575), (25, 10442471), (65, 4016335), (85, 3071315), (221, 1181275), (325, 803267), (425, 614263), (1105, 236255), (5525, 47251)]