1291225142

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{78839}}^1$

素因数の和:79291

約数の個数: 16

約数和(自身を含む): 2043532800

約数和(自身を除く): 752307658

約数列:

[1, 2, 19, 38, 431, 862, 8189, 16378, 78839, 157678, 1497941, 2995882, 33979609, 67959218, 645612571, 1291225142]

約数ペア:

[(1, 1291225142), (2, 645612571), (19, 67959218), (38, 33979609), (431, 2995882), (862, 1497941), (8189, 157678), (16378, 78839)]