18188225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^2$

素因数の和:158

約数の個数: 36

約数和(自身を含む): 26345040

約数和(自身を除く): 8156815

約数列:

[1, 5, 11, 19, 25, 55, 59, 95, 209, 275, 295, 475, 649, 1045, 1121, 1475, 3245, 3481, 5225, 5605, 12331, 16225, 17405, 28025, 38291, 61655, 66139, 87025, 191455, 308275, 330695, 727529, 957275, 1653475, 3637645, 18188225]

約数ペア:

[(1, 18188225), (5, 3637645), (11, 1653475), (19, 957275), (25, 727529), (55, 330695), (59, 308275), (95, 191455), (209, 87025), (275, 66139), (295, 61655), (475, 38291), (649, 28025), (1045, 17405), (1121, 16225), (1475, 12331), (3245, 5605), (3481, 5225)]