12690955

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:211

約数の個数: 24

約数和(自身を含む): 16459200

約数和(自身を除く): 3768245

約数列:

[1, 5, 19, 79, 89, 95, 361, 395, 445, 1501, 1691, 1805, 7031, 7505, 8455, 28519, 32129, 35155, 133589, 142595, 160645, 667945, 2538191, 12690955]

約数ペア:

[(1, 12690955), (5, 2538191), (19, 667945), (79, 160645), (89, 142595), (95, 133589), (361, 35155), (395, 32129), (445, 28519), (1501, 8455), (1691, 7505), (1805, 7031)]