28569775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5171}}^1$

素因数の和:5211

約数の個数: 24

約数和(自身を含む): 40403664

約数和(自身を除く): 11833889

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 1105, 5171, 5525, 25855, 67223, 87907, 129275, 336115, 439535, 1142791, 1680575, 2197675, 5713955, 28569775]

約数ペア:

[(1, 28569775), (5, 5713955), (13, 2197675), (17, 1680575), (25, 1142791), (65, 439535), (85, 336115), (221, 129275), (325, 87907), (425, 67223), (1105, 25855), (5171, 5525)]