256025

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1$

素因数の和:54

約数の個数: 36

約数和(自身を含む): 424080

約数和(自身を除く): 168055

約数列:

[1, 5, 7, 11, 19, 25, 35, 49, 55, 77, 95, 133, 175, 209, 245, 275, 385, 475, 539, 665, 931, 1045, 1225, 1463, 1925, 2695, 3325, 4655, 5225, 7315, 10241, 13475, 23275, 36575, 51205, 256025]

約数ペア:

[(1, 256025), (5, 51205), (7, 36575), (11, 23275), (19, 13475), (25, 10241), (35, 7315), (49, 5225), (55, 4655), (77, 3325), (95, 2695), (133, 1925), (175, 1463), (209, 1225), (245, 1045), (275, 931), (385, 665), (475, 539)]