28488845

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{31}}^2$

素因数の和:103

約数の個数: 54

約数和(自身を含む): 45167598

約数和(自身を除く): 16678753

約数列:

[1, 5, 7, 11, 31, 35, 49, 55, 77, 121, 155, 217, 245, 341, 385, 539, 605, 847, 961, 1085, 1519, 1705, 2387, 2695, 3751, 4235, 4805, 5929, 6727, 7595, 10571, 11935, 16709, 18755, 26257, 29645, 33635, 47089, 52855, 73997, 83545, 116281, 131285, 183799, 235445, 369985, 517979, 581405, 813967, 918995, 2589895, 4069835, 5697769, 28488845]

約数ペア:

[(1, 28488845), (5, 5697769), (7, 4069835), (11, 2589895), (31, 918995), (35, 813967), (49, 581405), (55, 517979), (77, 369985), (121, 235445), (155, 183799), (217, 131285), (245, 116281), (341, 83545), (385, 73997), (539, 52855), (605, 47089), (847, 33635), (961, 29645), (1085, 26257), (1519, 18755), (1705, 16709), (2387, 11935), (2695, 10571), (3751, 7595), (4235, 6727), (4805, 5929)]