20492225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3709}}^1$

素因数の和:3749

約数の個数: 24

約数和(自身を含む): 28982520

約数和(自身を除く): 8490295

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 1105, 3709, 5525, 18545, 48217, 63053, 92725, 241085, 315265, 819689, 1205425, 1576325, 4098445, 20492225]

約数ペア:

[(1, 20492225), (5, 4098445), (13, 1576325), (17, 1205425), (25, 819689), (65, 315265), (85, 241085), (221, 92725), (325, 63053), (425, 48217), (1105, 18545), (3709, 5525)]