28858025

素因数分解:

$5^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1601}}^1$

素因数の和:1721

約数の個数: 24

約数和(自身を含む): 41318784

約数和(自身を除く): 12460759

約数列:

[1, 5, 7, 25, 35, 103, 175, 515, 721, 1601, 2575, 3605, 8005, 11207, 18025, 40025, 56035, 164903, 280175, 824515, 1154321, 4122575, 5771605, 28858025]

約数ペア:

[(1, 28858025), (5, 5771605), (7, 4122575), (25, 1154321), (35, 824515), (103, 280175), (175, 164903), (515, 56035), (721, 40025), (1601, 18025), (2575, 11207), (3605, 8005)]