257364025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{10223}}^1$

素因数の和:10305

約数の個数: 24

約数和(自身を含む): 342299520

約数和(自身を除く): 84935495

約数列:

[1, 5, 19, 25, 53, 95, 265, 475, 1007, 1325, 5035, 10223, 25175, 51115, 194237, 255575, 541819, 971185, 2709095, 4855925, 10294561, 13545475, 51472805, 257364025]

約数ペア:

[(1, 257364025), (5, 51472805), (19, 13545475), (25, 10294561), (53, 4855925), (95, 2709095), (265, 971185), (475, 541819), (1007, 255575), (1325, 194237), (5035, 51115), (10223, 25175)]