138538225

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{25537}}^1$

素因数の和:25585

約数の個数: 24

約数和(自身を含む): 202669568

約数和(自身を除く): 64131343

約数列:

[1, 5, 7, 25, 31, 35, 155, 175, 217, 775, 1085, 5425, 25537, 127685, 178759, 638425, 791647, 893795, 3958235, 4468975, 5541529, 19791175, 27707645, 138538225]

約数ペア:

[(1, 138538225), (5, 27707645), (7, 19791175), (25, 5541529), (31, 4468975), (35, 3958235), (155, 893795), (175, 791647), (217, 638425), (775, 178759), (1085, 127685), (5425, 25537)]