178187828

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{997}}^1$

素因数の和:1512

約数の個数: 48

約数和(自身を含む): 384956544

約数和(自身を除く): 206768716

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 491, 982, 997, 1964, 1994, 3437, 3988, 6383, 6874, 6979, 12766, 12961, 13748, 13958, 25532, 25922, 27916, 44681, 51844, 89362, 90727, 178724, 181454, 362908, 489527, 979054, 1958108, 3426689, 6363851, 6853378, 12727702, 13706756, 25455404, 44546957, 89093914, 178187828]

約数ペア:

[(1, 178187828), (2, 89093914), (4, 44546957), (7, 25455404), (13, 13706756), (14, 12727702), (26, 6853378), (28, 6363851), (52, 3426689), (91, 1958108), (182, 979054), (364, 489527), (491, 362908), (982, 181454), (997, 178724), (1964, 90727), (1994, 89362), (3437, 51844), (3988, 44681), (6383, 27916), (6874, 25922), (6979, 25532), (12766, 13958), (12961, 13748)]