71145025

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{21397}}^1$

素因数の和:21433

約数の個数: 24

約数和(自身を含む): 106134080

約数和(自身を除く): 34989055

約数列:

[1, 5, 7, 19, 25, 35, 95, 133, 175, 475, 665, 3325, 21397, 106985, 149779, 406543, 534925, 748895, 2032715, 2845801, 3744475, 10163575, 14229005, 71145025]

約数ペア:

[(1, 71145025), (5, 14229005), (7, 10163575), (19, 3744475), (25, 2845801), (35, 2032715), (95, 748895), (133, 534925), (175, 406543), (475, 149779), (665, 106985), (3325, 21397)]