40990004

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{13121}}^1$

素因数の和:13207

約数の個数: 24

約数和(自身を含む): 79361856

約数和(自身を除く): 38371852

約数列:

[1, 2, 4, 11, 22, 44, 71, 142, 284, 781, 1562, 3124, 13121, 26242, 52484, 144331, 288662, 577324, 931591, 1863182, 3726364, 10247501, 20495002, 40990004]

約数ペア:

[(1, 40990004), (2, 20495002), (4, 10247501), (11, 3726364), (22, 1863182), (44, 931591), (71, 577324), (142, 288662), (284, 144331), (781, 52484), (1562, 26242), (3124, 13121)]