12127225

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:262

約数の個数: 36

約数和(自身を含む): 17481520

約数和(自身を除く): 5354295

約数列:

[1, 5, 11, 19, 25, 55, 95, 121, 209, 211, 275, 475, 605, 1045, 1055, 2299, 2321, 3025, 4009, 5225, 5275, 11495, 11605, 20045, 25531, 44099, 57475, 58025, 100225, 127655, 220495, 485089, 638275, 1102475, 2425445, 12127225]

約数ペア:

[(1, 12127225), (5, 2425445), (11, 1102475), (19, 638275), (25, 485089), (55, 220495), (95, 127655), (121, 100225), (209, 58025), (211, 57475), (275, 44099), (475, 25531), (605, 20045), (1045, 11605), (1055, 11495), (2299, 5275), (2321, 5225), (3025, 4009)]