2878525

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{521}}^1$

素因数の和:561

約数の個数: 24

約数和(自身を含む): 4077864

約数和(自身を除く): 1199339

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 521, 1105, 2605, 5525, 6773, 8857, 13025, 33865, 44285, 115141, 169325, 221425, 575705, 2878525]

約数ペア:

[(1, 2878525), (5, 575705), (13, 221425), (17, 169325), (25, 115141), (65, 44285), (85, 33865), (221, 13025), (325, 8857), (425, 6773), (521, 5525), (1105, 2605)]