27779785

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:154

約数の個数: 48

約数和(自身を含む): 40391568

約数和(自身を除く): 12611783

約数列:

[1, 5, 11, 17, 37, 55, 73, 85, 121, 185, 187, 365, 407, 605, 629, 803, 935, 1241, 2035, 2057, 2701, 3145, 4015, 4477, 6205, 6919, 8833, 10285, 13505, 13651, 22385, 29711, 34595, 44165, 45917, 68255, 76109, 148555, 150161, 229585, 326821, 380545, 505087, 750805, 1634105, 2525435, 5555957, 27779785]

約数ペア:

[(1, 27779785), (5, 5555957), (11, 2525435), (17, 1634105), (37, 750805), (55, 505087), (73, 380545), (85, 326821), (121, 229585), (185, 150161), (187, 148555), (365, 76109), (407, 68255), (605, 45917), (629, 44165), (803, 34595), (935, 29711), (1241, 22385), (2035, 13651), (2057, 13505), (2701, 10285), (3145, 8833), (4015, 6919), (4477, 6205)]