20547475

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3719}}^1$

素因数の和:3759

約数の個数: 24

約数和(自身を含む): 29060640

約数和(自身を除く): 8513165

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 1105, 3719, 5525, 18595, 48347, 63223, 92975, 241735, 316115, 821899, 1208675, 1580575, 4109495, 20547475]

約数ペア:

[(1, 20547475), (5, 4109495), (13, 1580575), (17, 1208675), (25, 821899), (65, 316115), (85, 241735), (221, 92975), (325, 63223), (425, 48347), (1105, 18595), (3719, 5525)]