71997905

素因数分解:

$5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{4139}}^1$

素因数の和:4229

約数の個数: 24

約数和(自身を含む): 101943360

約数和(自身を除く): 29945455

約数列:

[1, 5, 7, 35, 49, 71, 245, 355, 497, 2485, 3479, 4139, 17395, 20695, 28973, 144865, 202811, 293869, 1014055, 1469345, 2057083, 10285415, 14399581, 71997905]

約数ペア:

[(1, 71997905), (5, 14399581), (7, 10285415), (35, 2057083), (49, 1469345), (71, 1014055), (245, 293869), (355, 202811), (497, 144865), (2485, 28973), (3479, 20695), (4139, 17395)]