261252004

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{3769}}^1$

素因数の和:3860

約数の個数: 48

約数和(自身を含む): 520199680

約数和(自身を除く): 258947676

約数列:

[1, 2, 4, 13, 26, 31, 43, 52, 62, 86, 124, 172, 403, 559, 806, 1118, 1333, 1612, 2236, 2666, 3769, 5332, 7538, 15076, 17329, 34658, 48997, 69316, 97994, 116839, 162067, 195988, 233678, 324134, 467356, 648268, 1518907, 2106871, 3037814, 4213742, 5024077, 6075628, 8427484, 10048154, 20096308, 65313001, 130626002, 261252004]

約数ペア:

[(1, 261252004), (2, 130626002), (4, 65313001), (13, 20096308), (26, 10048154), (31, 8427484), (43, 6075628), (52, 5024077), (62, 4213742), (86, 3037814), (124, 2106871), (172, 1518907), (403, 648268), (559, 467356), (806, 324134), (1118, 233678), (1333, 195988), (1612, 162067), (2236, 116839), (2666, 97994), (3769, 69316), (5332, 48997), (7538, 34658), (15076, 17329)]