215352775

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{71191}}^1$

素因数の和:71223

約数の個数: 18

約数和(自身を含む): 293524616

約数和(自身を除く): 78171841

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 71191, 355955, 783101, 1779775, 3915505, 8614111, 19577525, 43070555, 215352775]

約数ペア:

[(1, 215352775), (5, 43070555), (11, 19577525), (25, 8614111), (55, 3915505), (121, 1779775), (275, 783101), (605, 355955), (3025, 71191)]